Document:

EX-10.21(f)

 Exhibit 10.21F 

Pages where confidential treatment has been requested are stamped “Confidential Treatment Requested and the Redacted Material has
been separately filed with the Commission,” and places where information has been redacted have been marked with (***). 

TENTH AMENDMENT 
 TO THE 
 RESTATED AND AMENDED 

CSG MASTER SUBSCRIBER MANAGEMENT SYSTEM AGREEMENT 
 BETWEEN 
 CSG SYSTEMS, INC. 

AND 

COMCAST CABLE COMMUNICATIONS MANAGEMENT, LLC 
 This TENTH AMENDMENT (the “Amendment”) is made by and between CSG Systems, Inc. (“CSG”) and Comcast Cable Communications Management, LLC (“Customer”).
The Effective Date of this Amendment is the date last signed below. CSG and Customer entered into a certain Restated and Amended CSG Master Subscriber Management System Agreement (CSG document #2296663) dated July 1, 2008 (the
“Agreement”) and now desire to amend the Agreement in accordance with the terms and conditions set forth in this Amendment. If the terms and conditions set forth in this Amendment shall be in conflict with the Agreement, the terms and
conditions of this Amendment shall control. Any terms in initial capital letters or all capital letters used as a defined term but not defined in this Amendment shall have the meaning set forth in the Agreement. Upon execution of this Amendment by
the parties, any subsequent reference to the Agreement between the parties shall mean the Agreement as amended by this Amendment. Except as amended by this Amendment, the terms and conditions set forth in the Agreement shall continue in full force
and effect according to their terms. 
 CSG and Customer agree to the following as of the Effective Date: 

 

	1.	Customer desires to utilize the services of CSG’s Professional Services Group to design, develop, and implement a custom solution that will allow
Customer’s Customer Service Representatives (CSRs) to complete orders with higher accuracy. CSG will design, develop and implement its Order Account Audit Tool (OAAT) to accomplish this solution by providing a series of edits during the
order creation process by CSRs that notify the CSR if the order has violated an order audit rule. Consequently, Schedule F of the Agreement is amended to include the following fees for the CSG services to be performed in connection with
the design, development and implementation of its OAAT: 

  

							
	 Description of Item/Unit of Measure
	  	Frequency	  	Fee	 
	 CSG Order Account Audit Tool (OAAT) (Note 1)
	  		  			
	 Production Support and Maintenance Fee (Note 2) (Note 3)
	  	******	  	$	**,***.**	  

 Note 1: Design, development and implementation services and lead times will be set forth in a
mutually agreeable Statement of Work 
 Note 2: ********** ******* **** ******** ***** *** ********** ** *****
******* ***** **** ** **********. ********** ******* ** ******* ** *** ******* ****** (***) ***** *** ****. Additional fees will be charged for hours exceeding this annual limit and will be set forth in a separate Statement of Work or
Letter of Authorization 
 Note 3: *** ****** ********** ******* *** *********** *** ****** **** ********** *******,
********* ********* ********** ********* *** ********* ******** ******** ********, *** ********* ******* *** ********* ******* ******** *********. **** ******** ******* **** ** ******** ** ***. ****** *********** *** ******* ** *** ****** ****
******** **** ** *** ***** ** * ******** ********* ********* ** ****. ****** ************ *******, *** *** *** ******* **, ******** *** ****** **** ******** ** ******* **** ******* ***** **** *****. ********** ******* *** *********** ** ******** **
******* ********** ****** **** *** **** *** ******* ***-******* *******, ** *** ******* ** *** ****** **** ******** ******** ** *** *** ** *** ********, *********, ********, ** *********** ************* *******. 

The fees set forth in the pricing table above are subject to increase pursuant to Section 5.4 of the Agreement. 

	***	Confidential Treatment Requested and the Redacted Material has been separately filed with the Commission. 

 

 IN WITNESS WHEREOF the parties hereto have caused this Amendment to be executed by their duly
authorized representatives. 
  

									
	COMCAST CABLE COMMUNICATIONS MANAGEMENT, LLC (“CUSTOMER”)	 		 	CSG SYSTEMS, INC. (“CSG”)
					
	By:	 	 /s/ Andrew J. Baer
	 		 	By:	 	 /s/ Joseph T. Ruble

					
	Name:	 	 Andrew J. Baer
	 		 	Name:	 	 Joseph T. Ruble

					
	Title:	 	 SVP & CIO
	 		 	Title:	 	 EVP, CAO & General Counsel

					
	Date:	 	 11/16/11
	 		 	Date:	 	 11-29-11EX-10.21(g)

 Exhibit 10.21G 

Pages where confidential treatment has been requested are stamped “Confidential Treatment Requested and the Redacted Material has
been separately filed with the Commission,” and places where information has been redacted have been marked with (***). 

ELEVENTH AMENDMENT 
 TO THE 
 RESTATED AND AMENDED 

CSG MASTER SUBSCRIBER MANAGEMENT SYSTEM AGREEMENT 
 BETWEEN 
 CSG SYSTEMS, INC. 

AND 

COMCAST CABLE COMMUNICATIONS MANAGEMENT, LLC 
 This ELEVENTH AMENDMENT (the “Amendment”) is made by and between CSG Systems, Inc. (“CSG”) and Comcast Cable Communications Management, LLC (“Customer”).
The Effective Date of this Amendment is the date last signed below. CSG and Customer entered into a certain Restated and Amended CSG Master Subscriber Management System Agreement (CSG document #2296663) dated July 1, 2008 (the
“Agreement”) and now desire to amend the Agreement in accordance with the terms and conditions set forth in this Amendment. If the terms and conditions set forth in this Amendment shall be in conflict with the Agreement, the terms and
conditions of this Amendment shall control. Any terms in initial capital letters or all capital letters used as a defined term but not defined in this Amendment shall have the meaning set forth in the Agreement. Upon execution of this Amendment by
the parties, any subsequent reference to the Agreement between the parties shall mean the Agreement as amended by this Amendment. Except as amended by this Amendment, the terms and conditions set forth in the Agreement shall continue in full force
and effect according to their terms. 
 CSG and Customer agree to the following: 

 

	1.	Customer desires to utilize, and CSG agrees to deliver CSG’s Event Management Service, which allows custom business rules to be developed to enhance the
Precision eMail. 

  

	2.	Therefore, Schedule C of the Agreement, entitled “RECURRING SERVICES,” shall be amended to add the following to the list of Recurring Services:

 CSG’s Event Management 

 

	3.	Schedule C shall be further amended by adding the Service description for CSG’s Event Management as Exhibit C-17, which is attached hereto and
incorporated herein by this reference. 

  

	2.	Schedule F, Fees, CSG Recurring Services, of the Agreement shall be amended to add a new Section VIII entitled “CSG’s Event Management,” as
follows: 

 CSG RECURRING SERVICES 

VIII. CSG’s Event Management 
  

									
	 Description of Item/Unit of Measure
	  	Frequency	 	  	Fee	 
	 1. Hosting Support (Note 1) (Note 2)
	  				  			
	 •    ***-********* ********** ***********
	  	 	******	  	  	$	***,***.**	  
	 •    ********** ********* **** *** ***
	  	 	******	  	  	$	***,***.**	  
	 •    ********** ********* **** * ***
	  	 	******	  	  	$	***,***.**	  
	 2. Transaction volume fees (Note 3)
	  				  			
	 •    ** to **,***
	  	 	*******	  	  	$	*,***.**	  
	 •    **,*** to ***,***
	  	 	*******	  	  	$	*,***.**	  
	 •    ***,*** to ***,***
	  	 	*******	  	  	$	*,***.**	  
	 •    ***,*** to ***,***
	  	 	*******	  	  	$	*,***.**	  
	 •    ***,*** to *,***,***
	  	 	*******	  	  	$	*,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to *,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    *,***,*** to **,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    **,***,*** to **,***,***
	  	 	*******	  	  	$	**,***.**	  
	 •    **,***,*** to **,***,***
	  	 	*******	  	  	$	**,***.**	  

	***	Confidential Treatment Requested and the Redacted Material has been separately filed with the Commission. 

 

 Note 1: CSG has provided Customer with ***** ******* *** *** ******* ** *** ******* *** ********
*** ****** ***-*********. *** ******* *** ******* ** *** ******** *** ** ******* *** ** ********* ******. ******** ***** ******* *** **** *** ******* ****** (***) ****’ ***** ******* ****** ** ******* *** ******* ** *** ******* ** **********
********* **** *** *** ** ********** ********* **** * ***; **** ********* **** ******** *** ********** ******* ******* ***** ** ******** ** ********. ** *** ***** ******** ****** ** **** ** ********** ********* **** *** *** ** ********** *********
**** * ***, *** ******* ***** ********* ** **** ***** *** ***** **** * ******** ****** **** ********* ** **** ** ***** *** *** *********** *** ** ********* ** *** *********. 

 

	•	 	 ***-********* ********** *********** * ***** * *** ********** *********** ** ***** ***** ** **** *** (*) *********** ****** *** ***
(*) ******** ****** **** ** ******** ************. **** *********** ******** ****** ******** ******* ** *** ***** ****** ***** *** *********** ****** ********** **** ***** *** ******* ** ** ***********. ***** ** ** ******** ********
** *** ***********, ********* *** ********* *** ******** ****** ******** *** *** ******** ** *** ******** ******** ** *** ********* *** *** *********. 

  

	•	 	 ********** ********* **** *** ***– ***** * *** ********** *********** ** ***** *** ********** *** **** **** ** *** ***** ********** ******* ***
********** *** **** ************ *** ******** * **** *** *****. **** ******* ******** ** ***** ** ** ************* ************** ******* (*.*., *********** ****** ********, ** ******* *****). ** **** *********** *********** ******* ****
******* ******* ************ ****** ****** ********* ********* *********** *******, ***** ****** ****** ** **** ********. ****** ********, *** ***** ********** ******* **** ** **** ** *** ******** *** ******* ******* ********** **** *** ********

  

	•	 	 ********** ********* **** * *** * ***** * ********** ********* *********** ** ******** ***** **** *** ******** ** ***-**** ****** **** ***********
***** ******** *** ****** ******** ** **** ** * ******** *********** ** *** **** * *****. 

 Note 2: *************,
***********, **************, *** **** *********** ******** *** *** ********** **** ***** ** *** ***** ** * ******** ****** **** ********* ** ****. 
 Note 3: *********** ****** ** ********** ***** **** *** ****** ** ******* ******** **** ***** ********** ********* **** ******** ** ********** *******, ********, ******** ** ************.

  

	3.	********** * ** ******* *-* ******** *** *******, ***., ******** **********/******** ******** **** ***** *** ***** ** *** ***** ********** ******* unless the parties
enter into a mutually agreed upon Statement of Work for the implementation of * ********* *********** *** ********* ** *** *********. 

  

	4.	Customer will use commercially reasonable efforts to keep its hardware and software in conformance with the Designated Environment specifications that CSG may
provide from time to time. If the Customer is not utilizing the product in a certified Designated Environment or Customer has added third party applications, Customer shall be responsible for making all necessary modifications to such third party
applications to ensure they function properly with any updates or upgrades to the Service. Custom software modifications are not included in this Agreement, but may be added to the Agreement and priced by mutual agreement of the parties.

  

CONFIDENTIAL AND PROPRIETARY INFORMATION - FOR USE BY AUTHORIZED EMPLOYEES FOR THE PARTIES HERETO ONLY AND IS NOT FOR GENERAL
DISTRIBUTION WITHIN OR OUTSIDE THEIR RESPECTIVE COMPANIES 

					
		 	2 / 4	  	11-16-2011

	***	Confidential Treatment Requested and the Redacted Material has been separately filed with the Commission. 

 

 IN WITNESS WHEREOF the parties hereto have caused this Amendment to be executed by their duly
authorized representatives. 
  

									
	COMCAST CABLE COMMUNICATIONS MANAGEMENT, LLC (“CUSTOMER”)	 		 	CSG SYSTEMS, INC. (“CSG”)
					
	By:	 	 /s/ Andrew J. Baer
	 		 	By:	 	 /s/ Joseph T. Ruble

					
	Name:	 	 Andrew J. Baer
	 		 	Name:	 	 Joseph T. Ruble

					
	Title:	 	 SVP & CIO
	 		 	Title:	 	 EVP, CAO & General Counsel

					
	Date:	 	 11/28/11
	 		 	Date:	 	 12-12-11

  

CONFIDENTIAL AND PROPRIETARY INFORMATION - FOR USE BY AUTHORIZED EMPLOYEES FOR THE PARTIES HERETO ONLY AND IS NOT FOR GENERAL
DISTRIBUTION WITHIN OR OUTSIDE THEIR RESPECTIVE COMPANIES 

					
		 	3 / 4	  	11-16-2011

	***	Confidential Treatment Requested and the Redacted Material has been separately filed with the Commission. 

 

 Exhibit C-17 

CSG’s Event Management 
 CSG’s Event Management. CSG’s Event Management is comprised of CSG Interactivate which provides the basis for custom workflows and business rules to be developed as part of the
implementation project or follow-on projects to enhance messaging capabilities. 

  

CONFIDENTIAL AND PROPRIETARY INFORMATION - FOR USE BY AUTHORIZED EMPLOYEES FOR THE PARTIES HERETO ONLY AND IS NOT FOR GENERAL
DISTRIBUTION WITHIN OR OUTSIDE THEIR RESPECTIVE COMPANIES 

					
		 	4 / 4	  	11-16-2011

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