Document:

<PAGE>

                                                                    EXHIBIT 10.3

                        FIRST LOAN MODIFICATION AGREEMENT

     This First Loan Modification Agreement (this "Loan Modification Agreement')
is entered into as of December 31,2002, by and between SILICON VALLEY BANK, a
California-chartered bank, with its principal place of business at 3003 Tasman
Drive, Santa Clara, California 95054 and with a loan production office located
at One Newton Executive Park, Suite 200, 2221 Washington Street, Newton,
Massachusetts 02462, doing business under the name "Silicon Valley East"
("Bank") and BOTTOMLINE TECHNOLOGIES (de), Inc., a Delaware corporation with its
chief executive office located at 325 Corporate Drive, Portsmouth, New Hampshire
03801("Borrower").

1.   DESCRIPTION OF EXISTING INDEBTEDNESS AND OBLIGATIONS. Among other
indebtedness and obligations which may be owing by Borrower to Bank, Borrower is
indebted to Bank pursuant to a loan arrangement dated as of December 28, 2001,
evidenced by, among other documents, a certain Loan and Security Agreement dated
as of December 28,2001, between Borrower and Bank, (as amended, the "Loan
Agreement"). The Loan Agreement established a working capital line of credit in
favor of Borrower in the maximum principal amount of Five Million Dollars
($5,000,000.00) (the "Committed Revolving Line"). Capitalized terms used but not
otherwise defined herein shall have the same meaning as in the Loan Agreement.

Hereinafter, all indebtedness and obligations owing by Borrower to Bank shall be
referred to as the "Obligations".

2.   DESCRIPTION OF COLLATERAL. Repayment of the Obligations is secured by the
Collateral as described in the Loan Agreement (together with any other
collateral security granted to Bank, the "Security Documents").

Hereinafter, the Security Documents, together with all other documents
evidencing or securing the Obligations shall be referred to as the "Existing
Loan Documents".

3.   DESCRIPTION OF CHANGE IN TERMS.

     A.   Modifications to Loan Agreement.

          1.   The Loan Agreement shall be amended by deleting the following
               definition appearing in Section 13.1 thereof:

                    ""Revolving Maturity Date" means the date which is one (1)
                    year from the Closing Date."

               and inserting in lieu thereof the following:

                    ""Revolving Maturity Date" means December 27, 2003.

          2.   The Loan Agreement shall be amended by deleting the following,
               appearing as Section 6.2(a)(i) thereof, in its entirety:

                    (a) Borrower shall deliver to Bank: (i) as soon as
                    available, but no later than thirty (30) days after the last
                    day of each month, a company prepared consolidated and
                    consolidating balance sheet and income statement covering
                    Borrower's consolidated operations during the period
                    certified by a Responsible Officer and in a form acceptable
                    to Bank

<PAGE>

               and inserting in lieu thereof the following:

                    (a) Borrower shall deliver to Bank: (i) as soon as
                    available, but no later than thirty (30) days after the last
                    day of each month in which Advances were outstanding, and
                    within thirty (30) days of the last day of each quarter, a
                    company prepared consolidated and consolidating balance
                    sheet and income statement covering Borrower's consolidated
                    operations during the period certified by a Responsible
                    Officer and in a form acceptable to Bank. Notwithstanding
                    the foregoing, the Borrower shall deliver to Bank the most
                    recent monthly company prepared consolidated and
                    consolidating balance sheet and income statement before any
                    Advances are advanced.

          3.   The Loan Agreement shall be amended by deleting the following,
               appearing as Section 6.2(b) thereof, in its entirety:

                    (b) Within thirty (30) days after the last day of each
                    month, Borrower shall deliver to Bank a Borrowing Base
                    Certificate signed by a Responsible Officer in the form of
                    Exhibit C, with aged listings of accounts receivable (by
                    invoice date).

               and inserting in lieu thereof the following:

                    (b) Borrower shall deliver to Bank a Borrowing Base
                    Certificate signed by a Responsible Office in the form of
                    Exhibit C. with aged listing of accounts receivable (by
                    invoice date): (i) within thirty (30) days of the last day
                    of each month in which Advances were outstanding, and (ii)
                    within thirty (30) days of the last day of each quarter.

          4.   The Loan Agreement shall be amended by deleting the following,
               appearing as Section 6.7 thereof, in its entirety:

               FINANCIAL COVENANTS.

               6.7  FINANCIAL COVENANTS.

                    Borrower shall maintain at all times, to be tested as of the
                    last day of each month, unless otherwise noted:

                    (a) Adjusted Quick Ratio. Borrower shall maintain a ratio of
                    Quick Assets to Current Liabilities minus Deferred Revenue
                    of at least 2.0 to 1.0. For the purposes hereof, Quick
                    Assets, Current Liabilities and Deferred Revenue shall
                    relate only to Borrower's operations (i.e., exclude foreign
                    operations of subsidiaries).

                    (b) Maximum Net Loss/Minimum Net Profit. For any month
                    Borrower fails to maintain at least $7,000,000.00 in cash on
                    deposit with the Bank, Borrower (together with its
                    subsidiaries on a consolidated basis) shall have (i) Net
                    Loss (based on the prior rolling three month period) not to
                    exceed (A) $2,250,000 for the month ending October 31, 2001,
                    (B) $2,000,000 for the month ending November 30, 2001, (C)
                    $1,700,000 for the month ending December 31, 2001, (D)
                    $1,600,000 for the month ending January 31, 2002, (E)
                    $1,250,000 for the month ending February 28,2002, (F)
                    $800,000 for the month ending March 31,2002, (G) $625,000
                    for the months ending April 30, 2002, May 31, 2002 and June
                    30, 2002; and (ii) net profit

<PAGE>

               (based on the prior rolling three month period) of One Dollar ($
               1.00), for each month thereafter.

               and inserting in lieu thereof the following: 6.7 Financial
               Covenants.

               6.7  FINANCIAL COVENANTS.

                    Borrower shall maintain at all times, to be tested as of the
                    last day of each quarter, unless otherwise noted:

                    (a) Adjusted Quick Ratio. Borrower shall maintain a ratio of
                    Quick Assets to Current Liabilities minus Deferred Revenue
                    of at least 2.0 to 1.0. For the purposes hereof, Quick
                    Assets, Current Liabilities and Deferred Revenue shall
                    relate only to Borrower's operations (i.e., exclude foreign
                    operations of subsidiaries).

                    (b) Maximum Net Loss/Minimum Net Profit. For any quarter
                    Borrower fails to maintain at least $7,000,000.00 in cash on
                    deposit with the Bank, Borrower (together with its
                    subsidiaries on a consolidated basis) shall have a net
                    profit (based on the prior rolling three month period) of
                    One Dollar ($ 1.00), for the quarter ending December 31,
                    2002, and for each three month period thereafter.

          5.   The Compliance Certificate appearing as Exhibit D to the Loan
               Agreement is hereby replaced with the Compliance Certificate
               attached as Exhibit A hereto.

4.   FEES. The Borrower shall also reimburse Bank for all legal fees and
expenses incurred in connection with this amendment to the Existing Loan
Documents.

5.   RATIFICATION OF NEGATIVE PLEDGE AGREEMENT. Borrower hereby ratifies,
confirms and reaffirms, all and singular, the terms and conditions of a certain
Negative Pledge/Intellectual Property Security Agreement dated as of December
28, 2001, between Borrower and Bank, and acknowledges, confirms and agrees that
said Negative Pledge Agreement shall remain in full force and effect.

6.   ADDITIONAL COVENANTS: Borrower shall not, without providing the Bank with
thirty (30) days prior written notice: (i) relocate its principal executive
office or add any new offices or business locations or keep any Collateral in
any additional locations (unless such new offices or locations contain less than
Fifty Thousand Dollars ($50,000.00) of Borrower's assets or property), or (ii)
change its jurisdiction of organization, or (iii) change its organizational
structure or type, (iv) change its legal name, or (v) change any organizational
number (if any) assigned by its jurisdiction of organization. In addition, the
Borrower hereby certifies that no Collateral is in the possession of any third
party bailee (such as at a warehouse) except as set forth on the Perfection
Certificate dated on or about the date hereof delivered by Borrower to Bank in
connection with this Loan Modification Agreement (the "Perfection Certificate").
In the event that Borrower, after the date hereof, intends to store or otherwise
deliver the Collateral to such a bailee (other than (i) as listed in the
Perfection Certificate or (ii) Inventory stored at Borrower's vendor's locations
in the ordinary course of business in amounts consistent with past practices),
then Borrower shall first receive, the prior written consent of Bank and such
bailee must acknowledge in writing that the bailee is holding such Collateral
for the benefit of Bank. Borrower acknowledges, confirms and agrees that the
disclosures and information about Borrower provided to Bank in the Perfection
Certificate is accurate in all material respects, as of the date thereof.

7.   AUTHORIZATION TO FILE. Borrower hereby authorizes Bank to file financing
statements without notice to Borrower, with all appropriate jurisdictions, as
Bank deems appropriate, in order to further perfect or protect Bank's interest
in the Collateral.

8.   CONSISTENT CHANGES. The Existing Loan Documents are hereby amended wherever
necessary to reflect the changes described above.

<PAGE>

9.   RATIFICATION OF LOAN DOCUMENTS. Borrower hereby ratifies, confirms, and
reaffirms all terms and conditions of all security or other collateral granted
to the Bank, and confirms that the indebtedness secured thereby includes,
without limitation, the Obligations.

10.  NO DEFENSES OF BORROWER. Borrower agrees that, as of this date, it has no
defenses against the obligations to pay any amounts under the Obligations.

11.  CONTINUING VALIDITY. Borrower understands and agrees that in modifying the
existing Obligations, Bank is relying upon Borrower's representations,
warranties, and agreements, as set forth in the Existing Loan Documents. Except
as expressly modified pursuant to this Loan Modification Agreement, the terms of
the Existing Loan Documents remain unchanged and in full force and effect.
Bank's agreement to modifications to the existing Obligations pursuant to this
Loan Modification Agreement in no way shall obligate Bank to make any future
modifications to the Obligations. Nothing in this Loan Modification Agreement
shall constitute a satisfaction of the Obligations. It is the intention of Bank
and Borrower to retain as liable parties all makers of Existing Loan Documents,
unless the party is expressly released by Bank in writing. No maker will be
released by virtue of this Loan Modification Agreement.

12.  COUNTERSIGNATURE. This Loan Modification Agreement shall become effective
only when it shall have been executed by Borrower and Bank (provided, however,
in no event shall this Loan Modification Agreement become effective until signed
by an officer of Bank in California).

            [The remainder of this page is intentionally left blank]

<PAGE>

     This Loan Modification Agreement is executed as a sealed instrument under
the laws of the Commonwealth of Massachusetts as of the date first written
above.

 BORROWER:                                      BANK:

 BOTTOMLINE TECHNOLOGIES (de), Inc.             SILICON VALLEY BANK, doing
                                                business as SILICON VALLEY EAST

By: /s/ Robert A. Eberle                        By: /s/ Timothy M. Ryan
    --------------------------------------         -----------------------------

Name: Robert A. Eberle                          Name: /s/ Timothy M. Ryan
      ------------------------------------           ---------------------------

Title: EVP, COO & CFO                           Title: /s/ Vice President
       -----------------------------------            --------------------------

                                                SILICON VALLEY BANK

                                                By: /s/ Michelle Giannini
                                                    ----------------------------

                                                Name: /s/ Michelle Giannini
                                                     ---------------------------

                                                Title: /s/ AVP
                                                      --------------------------
                                                (signed in Santa Clara County,
                                                California)

<PAGE>

                                    EXHIBIT A
                             COMPLIANCE CERTIFICATE

TO:   SILICON VALLEY BANK

FROM: BOTTOMLINE TECHNOLOGIES (de), INC.

     The undersigned authorized officer of BOTTOMLINE TECHNOLOGIES (de), INC.
certifies that under the terms and conditions of the Loan and Security Agreement
between Borrower and Bank (the "Agreement"), (i) Borrower is in complete
compliance for the period ending _________________ with all required covenants
except as noted below and (ii) all representations and warranties in the
Agreement are true and correct in all material respects on this date. Attached
are the required documents supporting the certification. The Officer certifies
that these are prepared in accordance with Generally Accepted Accounting
Principles (GAAP) consistently applied from one period to the next except as
explained in an accompanying letter or footnotes. The Officer acknowledges that
no borrowings may be requested at any time or date of determination that
Borrower is not in compliance with any of the terms of the Agreement, and that
compliance is determined not just at the date this certificate is delivered.

     Please indicate compliance status by circling Yes/No under "Complies"
column.

<TABLE>
<CAPTION>
     REPORTING COVENANT                         REQUIRED                     COMPLIES

     <S>                                        <C>                           <C>
     Monthly financial statements with CC       Quarterly within 30 days      Yes   No
                                                Monthly within 30 days        Yes   No
                                                (when Advances outstanding)

     Annual (CPA Audited)                       FYE within 90 days            Yes   No
     10-Q, 10-K and 8-K                         Within 10 days after filing
                                                with SEC                      Yes   No
     BBC A/R Agings                             Quarterly within 30 days      Yes   No
                                                Monthly within 30 days
                                                (when Advances outstanding)   Yes   No

<CAPTION>
     FINANCIAL COVENANT                         REQUIRED                ACTUAL      COMPLIES

     <S>                                        <C>                     <C>         <C>
     Maintain on a Monthly Basis:
       Minimum Adjusted Quick Ratio             2.0:1.0                 ___:1.0     Yes  No

     Profitability (net loss/min profit)        $_*____                 $______     Yes  No
</TABLE>

*See Loan and Security Agreement

Comments Regarding Exceptions: See Attached.

                                                        BANK USE ONLY

Sincerely,                                      Received by:
                                                            --------------------
                                                              AUTHORIZED SIGNER

----------------------------
SIGNATURE                                       Date:
                                                     ---------------------------

---------------------------                     Verified:
TITLE                                                    -----------------------
                                                              AUTHORIZED SIGNER

---------------------------                     Date:
DATE                                                 ---------------------------

<PAGE>

                       BOTTOMLINE TECHNOLOGIES (de), INC.

                             SECRETARY'S CERTIFICATE

     I, Robert A. Eberle, in my capacity as Secretary of Bottomline Technologies
(de), Inc., a Delaware corporation (the "Company"), acting in connection with
the First Loan Modification Agreement dated as of December 31, 2002 between the
Company and Silicon Valley Bank (the "Loan Agreement"), hereby certify that I am
the duly elected and acting Secretary of the Company, and further certify as
follows:

     1.   The following persons are the duly elected officers of the Company
          occupying the offices set forth opposite their respective names, each
          such officer is authorized to execute on behalf of the Company the
          Loan Agreement and all agreements and documents contemplated thereby,
          and the signature set forth opposite each such officer's respective
          name is his true signature.

     Name               Office                              Signature

Robert A. Eberle        Executive Vice President,           /s/ Robert E. Eberle
                        Chief Operating Officer,            --------------------
                        Chief Financial Officer
                        and Secretary

Dated as of December 31, 2002.                              /s/ Robert E. Eberle
                                                            --------------------
                                                            Robert A. Eberle,
                                                            Secretary

<PAGE>

          PERFECTION CERTIFICATE OF BOTTOMLINE TECHNOLOGIES (de), INC.

     The undersigned, Robert A. Eberle of Bottomline Technologies (de), Inc., a
Delaware corporation with offices at 325 Corporate Drive, Portsmouth, New
Hampshire 03801 (the "Company"), hereby certifies with reference to the First
Loan Modification Agreement between the Company and SILICON VALLEY BANK (the
"Bank") dated December 31, 2002, as modifying that certain Loan and Security
Agreement dated as of December 28, 2001 between the Company and the Bank (terms
defined therein being used herein as therein defined), to the Bank as follows
(for purposes of this Perfection Certificate, those questions for which no
response is completed shall be deemed to read "None"):

     1.   Names.

          (a) The exact legal name of the Company as it appears in its
certificate of incorporation, as amended to date, is as follows:

          Bottomline Technologies (de), Inc.

          (b) The following is a list of all other names (including trade names
or similar appellations) used by the Company, or any of its divisions or other
business units, or any other business or organization to which the Company
became the successor by merger, consolidation, acquisition, change in form,
nature or jurisdiction of organization or otherwise, now or at any time during
the past five years together with the dates such names were used:

        .  Certisoft Solutions, Inc. (May 1996 - January 1997)
        .  Integrated Cash Management Services, Inc. (asset acquisition)
           (October 1999)
        .  OLC Software, Inc. (February 2000)
        .  Checkpoint Holdings, Ltd. (August 2000 - May 2001)
        .  Checkpoint Security Services, Ltd. (August 2000 - May 2001)
        .  Checkpay, Ltd. (August 2000 - July 2002)
        .  Flashpoint, Inc. (August 2000)
        .  eVelocity Corporation (asset acquisition) (May 2002)

          (c) The following is a list of all subsidiaries of the Company
(whether wholly owned, or where the Company has a controlling or majority
interest):

        .  Fleet Street Corp.
        .  Bottomline Technologies, Limited
        .  Bottomline Technologies Europe, Limited
        .  Checkpay, Limited
        .  J. Sloper & Company (dormant)
        .  Redwood Payment Systems, Inc. (dormant)
        .  Checkpoint USA, Inc. (dormant)

          (d) The following is the type of organization of the Company:

          Corporation

          (e) The jurisdiction of organization of the Company is as follows:

          Delaware

<PAGE>

          (f) The following is the Company's state issued organizational
identification number [state "none" if the state does not issue such a number]:

          2776500

          (g) The Company's federal taxpayer identification number is:

          02-0433294

          (h) The Company currently maintains its bank and investment accounts
at:

               (1) Bank Accounts - FleetBoston and Silicon Valley Bank

               (2) Investment Accounts - FleetBoston and Silicon Valley Bank

               (3) Other depository/operating accounts - N/A

          (i) The Company currently has the following commercial tort claims
against other parties:

          None

          (j) Attached hereto as Schedule A is the information required above
for any other business or organization to which the Company became the successor
by merger, consolidation, acquisition, change in form, nature or jurisdiction of
organization or otherwise, now or at any time during the past five years:

     2. Current Locations.

          (a) The following is the mailing address of the Company:

     Mailing Address                     City                    State

     325 Corporate Drive               Portsmouth                 NH

          (b) If different from its mailing address, the Company's place of
business, or if more than one, its chief executive office is located at the
following address:

     Mailing Address                     City                    State

     (same as above)

          (c) The following are all other locations in which the Company
maintains any books or records relating to any of the Collateral consisting of
accounts, instruments, chattel paper, general intangibles or mobile goods:

                     Mailing
Name                 Address             City                    State

     N/A

          (d) The following are all other places of business of the Company:

<PAGE>

     Mailing
     Address                                City                     State
  .   60 Cutter Mill Rd                    Great Neck                 NY
  .   607 Market Street, Suite 400         San Francisco              CA
  .   333 So. Wadsworth Blvd, Suite D312   Lakewood                   CO

          (e) The following are all the locations where any of the Collateral
consisting of equipment and/or inventory are located:

     Mailing
     Address                                City                     State

  .   325 Corporate Drive                  Portsmouth                 NH
  .   607 Market Street, Suite 400         San Francisco              CA
  .   333 So. Wadsworth Blvd, Suite D312   Lakewood                   CO
  .   60 Cutter Mill Rd                    Great Neck                 NY

          (f) The following are the names and addresses of all persons or
entities other than the Company, such as lessees, bailees, consignees,
warehousemen or purchasers of chattel paper, which have possession or are
intended to have possession of any of the Collateral consisting of instruments,
chattel paper, inventory or equipment:

      RWG & Logistics
      179 Ward Hill Avenue
      Haverhill, MA 01835

     3. Prior Locations, (a) Set forth below is the information required by
subparagraphs (c) and (d) of paragraph 2 with respect to each location or place
of business previously maintained by the Company at any time during the past
five years in a state in which the Company has previously maintained a location
or place of business:

     Address                                City                     State

     55 Broad Street                        New York                   NY
     146 Fleet Street                       Portsmouth                 NH
     195 Hanover Street, Suite 22           Portsmouth                 NH
     155 Fleet Street                       Portsmouth                 NH
     325 State Street                       Portsmouth                 NH
     One Thompson Square                    Charlestown                MA

          (b) Set forth below is the information required by subparagraphs (e)
and (f) of paragraph 2 with respect to each other location at which, or other
person or entity with which, any of the Collateral consisting of inventory or
equipment has been previously held at any time during the past twelve months:

Name                    Address                    City              State

Distribution Group      11 Rogers Road             Haverhill           MA
RWG & Logistics         468 Canal Street           Lawrence            MA

     4. Attached hereto as Schedule B is the information required by U.C.C.
Section 9-502(b) or former U.C.C. Section 9-402(5) of each state in which any of
the Collateral consisting of fixtures are or are to be located and the name and

                                       -3-

<PAGE>

address of each real estate recording office where a mortgage on the real estate
on which such fixtures are or are to be located would be recorded.

     5. No Unusual Transactions. Except for those purchases, acquisitions, and
other transactions as set forth in Schedule A or Schedule C attached hereto, all
of the Collateral has been originated by the Company in the ordinary course of
the Company's business or consists of goods which have been acquired by the
Company in the ordinary course from a person in the business of selling goods of
that kind.

     The undersigned hereby acknowledges and agrees that the Bank is relying on
the representations and warranties made herein in connection with a loan
transaction or transactions to be entered into between the undersigned and the
Bank.

     IN WITNESS WHEREOF, I have hereunto set my hand this 9th day of January,
2003, and this document shall constitute a document under seal under the laws of
the Commonwealth of Massachusetts.

                                            BOTTOMLINE TECHNOLOGIES (de), INC.

                                            By: /s/ Robert A. Eberle
                                                --------------------------------
                                                  (duly authorized)

                                            Name: Robert A. Eberle
                                                  ------------------------------

                                      -4-

<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>
                                                                JURISDICTION OF
COMPANY NAME                         TYPE OF ORGANIZATION       ORGANIZATION        FEDERAL ID #
------------                         --------------------       ------------        ------------

<S>                                  <C>                        <C>                 <C>
Certisoft Solutions, Inc.            c-corporation                 Colorado         84-1274021

Integrated Cash Management           c-corporation                 New York         11-2575401
Services, Inc. (asset acquisition)

OLC Software, Inc.                   c-corporation              Massachusetts       04-3405335

Checkpoint Holdings Ltd. and         c-corporation              United Kingdom          N/A
subsidiaries

Flashpoint, Inc.                     c-corporation              Massachusetts       04-3O30079

eVelocity Corporation (asset         c-corporation              New Hampshire       03-0317830
acquisition)
</TABLE>

                                       -5-<PAGE>

                                                                    EXHIBIT 10.4

THIS IS AN IMPORTANT DOCUMENT WHICH SETS OUT THE TERMS AND CONDITIONS OF YOUR
COMMITTED OVERDRAFT FACILITY. WE RECOMMEND THAT YOU TAKE INDEPENDENT LEGAL
ADVICE IF YOU HAVE ANY DOUBTS REGARDING THE TERMS AND CONDITIONS OF THE
FACILITY.

Confirmation of Committed Business Overdraft Facility

                                            [LOGO OF THE ROYAL BANK OF SCOTLAND]

                                          Thames Valley Corporate
                                          Abbey Gardens
                                          4 Abbey Street
                                          Reading
                                          RG1 3BA

Private & Confidential
Bottomline Technologies Europe Limited    Telephone: 0118 952 2117
Company Number 1911956
115 Chatham Street
Reading
Berks
RG1 7JX

Facility Account:            67486932 at Market Place, Reading (sorting code
                             60-17-21)
Overdraft Limit:             (pound) 2,000,000
Agreed Interest Rate:        2% per annum over the Bank's Base Rate
Bank's Base Rate:            currently 4% per annum (but may vary from time to
                             time)
Unarranged Overdraft Rate:   4% per annum over the Bank's Base Rate (but may
                             vary from time to time subject to one month's
                             notice)
Arrangement Fee:             (pound) 10,000
Facility Start Date:         31 January 2003
Expiry Date:                 31 December 2003

Principal Terms

1.   We, The Royal Bank of Scotland plc acting as agent for National Westminster
     Bank plc, offer you a committed overdraft facility (the Facility) subject
     to the terms of this Confirmation and the Committed Overdraft General Terms
     (COGT) attached.

2.   Provided that none of the Events of Default detailed in Clause 3 occur, the
     Facility will, subject to the terms of this Confirmation and the COGT
     attached, be available from the Facility Start Date until the Expiry Date.

3.   If any of the following events (Events of Default) occurs, we may, by
     giving written notice, demand immediate repayment of the outstanding
     borrowing on the Facility Account, require that the amounts from time to
     time owing under the Facility become repayable upon demand or cancel the
     Facility and exercise our rights under any security:-
     (a)  the Overdraft Limit is exceeded;
     (b)  the commencement of any winding-up, bankruptcy or administration
          proceedings against you or the appointment of a receiver or
          administrative receiver in respect of any of your property or you make
          arrangements with creditors;
     (c)  if you are a sole trader, you die;
     (d)  your business ceases to trade or, if you are a partnership, the
          partnership is dissolved;
     (e)  any procedure is used against you to attach or take possession of any
          property for payment of a debt;
     (f)  you are in breach of any obligation (financial or otherwise) to us or
          any of the terms of this Confirmation, or the COGT or any other
          agreement with us are breached;
     (g)  you fail to provide any information regarding your financial condition
          or business operations detailed in Clause 5; or
     (h)  any information given to us is inaccurate or there is a material
          non-disclosure by you to us.

4.   Interest will be charged:-
     (a)  up to the Overdraft Limit, at the Agreed Interest Rate; and
     (b)  in excess of the Overdraft Limit (or after we have demanded immediate
          repayment of the outstanding borrowing on the Facility Account in
          terms of Clause 3 of this Confirmation or Clause C of the COGT), at
          the Unarranged Borrowing Rate.

        The Royal Bank of Scotland plc is registered in Scotland No 90312
           Registered Office: 36 St Andrew Square, Edinburgh, EH2 2YB

<PAGE>

5.   To enable us to monitor the Facility you will provide:-
     (a)  as soon as they become available but in any event within 180 days
          after the end of your financial year and in a format acceptable to us,
          copies of your business accounts for that year (Audited Accounts for
          the financial year ended 30th June 2002 to be provided by 31st May
          2003);
     (b)  as soon as they become available but in any event no later than 30
          days after the end of the accounting period to which they relate and
          in a format acceptable to us, monthly management accounts
          incorporating balance sheet and profit and loss accounts, and aged
          list of debtors and creditors; and
     (c)  promptly, such further information regarding your financial condition
          and business operations as we may reasonably request (including
          audited business/management accounts where not already supplied).

6.   The Arrangement Fee will be debited by us to the Facility Account on the
     date of this Confirmation or shortly thereafter.

7.   If applicable, the Facility will be secured by the security held and/or
     required by us as set out in an attached Schedule. It is a term of the
     Facility that it is at all times effectively secured by such security and
     that the terms of such security are not breached. No additional security
     may be created over the assets charged under such security without our
     prior written consent. The continued availability of the Facility will be
     subject to such security continuing in full force and effect. The
     additional security detailed in section (2) of the attached Schedule is to
     be provided to the Bank's satisfaction prior to 10th March 2003.

8.   Notwithstanding the Facility Start Date, we shall not be obliged to provide
     the Facility until we have received and are satisfied with such written
     evidence/documents as we may require confirming your capacity to:-
     (a)  enter into this Confirmation and COGT;
     (b)  utilise the Facility
     (c)  give any security specified

     and confirming that the person or persons who will accept the terms of this
     Confirmation and COGT and execute/seal any security on your behalf is/are
     duly authorised by you.

9.   Notwithstanding the Facility Start Date, we are not obliged to provide the
     Facility until you have accepted the Facility on the terms set out in this
     Confirmation and COGT by returning the duplicate of this Confirmation to us
     duly signed.

For The Royal Bank of Scotland plc acting as agent for National Westminster Bank
Plc

/s/ Colin Robertson
-------------------
Colin Robertson
Senior Corporate Manager
Date 31 January 2003

Having decided that the Facility is appropriate and in our interests, it is
hereby accepted on the terms set out in this Confirmation and the COGT overleaf.

Signature /s/ Stephen J. Cutler                Date February 4, 2003
         ----------------------                ---------------------

Signature /s/ [ILLEGIBLE]                      Date February 4, 2003
         --------------------                  ---------------------

<PAGE>

COMMITTED OVERDRAFT GENERAL TERMS (COGT)

These COGT explain your and our rights and responsibilities in respect of the
Facility and should be read in conjunction with the Confirmation attached
specific to the Facility. Definitions and meanings used in the Confirmation
attached also apply in these COGT (and vice versa) unless the context requires
otherwise.

A. OVERDRAFT LIMIT
The Facility enables you to overdraw the Facility Account up to the Overdraft
Limit. The Overdraft Limit should not be exceeded without our prior consent and
we may refuse to allow any payment or withdrawal which could have that effect.
If we allow a payment or withdrawal or a series of payments or withdrawals which
results in the Overdraft Limit being exceeded, it will not mean that the
Overdraft Limit has changed or that we are bound to allow any other payment or
withdrawal which could result in the Overdraft Limit being exceeded at other
times. We may debit the Facility Account under Clauses D and E of these COGT
even if it results in the Overdraft Limit being exceeded.

B. UNCLEARED CREDITS
We may disregard any uncleared credits when calculating the amount outstanding
under the Facility (and any interest payable). If however we pay a cheque or
cheques (or allow any other payment or withdrawal or a series of payments or
withdrawals) against uncleared credits at any time we are not bound to do so at
other times.

C. RENEWAL OF FACILITY
At any time during the 30 days prior to the Expiry Date you may request (or we
may offer) to renew the Facility for a further period of up to 365 days, subject
to us undertaking a full credit assessment and further documentation. If the
Facility is not renewed before the Expiry Date any borrowing outstanding under
the Facility will become repayable on demand and the Facility may be
unconditionally cancelled by us at any time.

D. INTEREST
Interest will be calculated both before and after demand, court decree or
judgment on a daily basis on the cleared debit balance and will be debited by us
to the Facility Account quarterly on the final business day of March, June,
September and December (or on such other dates as the Bank may advise from time
to time).

E. COSTS/CHARGES
You must pay any costs incurred by us in connection with the Facility whether as
a result of you breaking the terms of the Facility or not. These costs will
include (but not be limited to) costs of taking and discharging any security;
taking steps, including court action, to obtain payment; enforcing and/or
preserving the Bank's rights under any security held for the Facility; tracing
you if you change address without notice and communicating with you if you break
the terms of the Facility or an Event of Default occurs. We may debit such costs
to the Facility Account.

F. CHANGE IN LAW, REGULATION OR DIRECTIVE
If as a result of a change of any applicable law, regulation or directive, the
cost to us of providing the Facility (including the cost of any undrawn portion
of the Facility) increases we may, upon one month's written notice, convert the
Facility into an overdraft repayable on demand and/or otherwise vary the terms
and conditions of the Facility, including effecting an increase in the interest
charged to reflect the increased cost of providing the Facility.

G. SET OFF
We shall be entitled to set-off against any of your liabilities under this
agreement (whether present, future, actual or contingent) any of your credit
balances (whether subject to notice or not) on any of your accounts with us in
your name. We do not have to give you any prior notice to do this.

H. JOINT AND SEVERAL LIABILITY

If you are more than one person then the word "you" shall refer to such persons
both together and separately and the obligations of those persons under the
Facility shall be joint and several, that is to say, each of you can be held
liable both jointly and individually for all of the obligations under the
facility.

I.   MISCELLANEOUS
These terms will not be affected by the Facility Account being allocated another
account number by us or being transferred to another of our branches, offices or
departments. In the event of a conflict between (i) the terms of the
Confirmation attached and these COGT and (ii) any other terms which apply to the
Facility Account then the terms of the Confirmation attached and these COGT will
prevail.

<PAGE>

[LOGO OF THE ROYAL BANK OF SCOTLAND]

This is the Schedule referred to in the Bank's Confirmation of Committed
Business Overdraft Facility to the Customer dated: 31 January 2003

Customer: Bottomline Technologies Europe Limited

The Facility made available by the Bank to the Customer in terms of the
Confirmation of Committed Business Overdraft Facility shall at all times be
secured by the following :-

(1) the existing available security held by the Bank as follows :-
     (a)  Debenture by you dated 17/12/2001
     (b)  First Legal Charge/Mortgage by you over Freehold Land and Buildings
               situated at 115 Chatham Street, Reading, Berks, dated 17/12/2001,
               also incorporating subsequent Legal Charges over property known
               as 97-113 odd, and 117 Chatham Street, Reading dated 05/06/2002.
     (c)  Letter of Comfort, dated 12/09/2002, given by Bottomline Technologies
          Inc.

(2) new security required by the Bank for the facility as follows :-
     (a)  Unlimited Inter Company Composite Guarantee granted by you, Bottomline
               Technologies Limited and Bottomline Transactional Services
               Limited, supported by existing Debentures from you, and new
               Debentures from Bottomline Technologies Ltd and Bottomline
               Transactional Services Limited.

(3) any further security which the Bank may now or in future hold.

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