Exhibit 10.80 Merrill Lynch Capital Canada Inc. 181 Bay Street Toronto, Ontario M5J 2V8 By FACSIMILE TRANSMISSION AmeriCredit Financial Services of Canada Ltd. One Robert Speck Parkway Suite 1420 Mississauga, Ontario L4Z 3M3 Attention: Mr. Preston Miller Facsimile No. (817) 302-7942 with a copy to: AmeriCredit Corp. 801 Cherry Street Suite 3900 Fort Worth, Texas 76102 Attention: Michael May Facsimile No. (817) 302-7915 Re: Credit Agreement between AmeriCredit Financial Services of Canada Ltd. as Borrower, AmeriCredit Financial Services, Inc. as Custodian and Merrill Lynch Capital Canada Inc. as Lender, dated as of August 23, 2001, as amended by Amendment No. 1 dated as of November 12, 2001 and by Amendment No. 2 dated as of February 1, 2002 (collectively, the "Credit Agreement") Pursuant to Section 3.8.1 of the Credit Agreement, the Lender hereby extends the existing Maturity Date to August 22, 2003. Dated as of July 22, 2002. MERRILL LYNCH CAPITAL CANADA INC. By: /s/ ------------------------ Authorized Signatory