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Exhibit 10.156
 
Guarantor Supplement

December 31, 2010

Bank of Montreal, as Administrative Agent for the Banks party to the Credit
Agreement dated as of September 29, 2006 among Alliance Data Systems
Corporation, the Guarantors from time to time party thereto, the Banks from time
to time party thereto, Bank of Montreal, as Letter of Credit Issuer, and Bank of
Montreal, as Administrative Agent (as the same may be amended, restated or
supplemented from time to time, the “Credit Agreement”)

Ladies and Gentlemen:

Reference is made to the Credit Agreement described above.  Terms not defined
herein which are defined in the Credit Agreement shall have for the purposes
hereof the meaning provided therein.

The undersigned, Alliance Data Retail Services, LLC, a Delaware limited
liability company, hereby acknowledges that it is a “Guarantor” for all purposes
of the Credit Agreement, effective from the date hereof.  The undersigned
confirms that the representations and warranties set forth in Article 4 of the
Credit Agreement are true and correct in all material respects as to the
undersigned as of the date hereof (other than any representation or warranty
that relates to a specified date, which shall be true and correct in all
material respects as of such date).

Without limiting the generality of the foregoing, the undersigned hereby agrees
to perform all the obligations of a Guarantor under, and to be bound in all
respects by the terms of, the Credit Agreement, including, without limitation,
Article 9 thereof, to the same extent and with the same force and effect as if
the undersigned were a direct signatory thereto.

This Agreement shall be construed in accordance with and governed by the
internal laws of the State of New York.

[Signature Page Follows]

 
 

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Very truly yours,
       
ALLIANCE DATA RETAIL SERVICES, LLC
             
By
/s/ Hugh M. Hayden
 
Name 
Hugh M. Hayden
 
Title
Senior Vice President

 
 
 

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