Spend $40 or more on your American Express Card two times at Walmart Stores or walmart.com and get a $20 statement credit on your card account.
To participate in this program, please Sign Up Here. Then visit any Walmart store or walmart.com and use your registered American Express® Card. You will be charged in full at the point-of-sale and your savings will automatically be credited to your statement within 5 days after you spend $40 or more 2 times from November 18 through December 18, 2008.
Don't have American Express? Click Here to sign up.