<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by jfe:
Here is the information that I received on the Delta email, I couldn't find anything on their website.
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Low Prices and Double Miles at Wal-Mart
Now more than ever, it pays to shop at Wal-Mart. From June 15 through July 31, 2002, every Wal-Mart purchase you put on your Delta SkyMiles Credit Card from American Express can earn you Double Miles!
To locate the Wal-Mart closest to your home or office, visit Wal-Mart's Web site at www.walmart.com. Get ready for a great summer—take your Delta SkyMiles Credit Card to Wal-Mart and earn two miles for every eligible dollar charged.
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So I think I got it wrong- it seems like you simply go to Walmart between 6/15-7/30, and get double miles using the Delta Amex.