My brother purchased two 32 gig 3gs iphone (one for him and one for his wife) last week, before the unlimited data plan ended. Today we both read the notice that you can get a $100 rebate, or exchange the 3gs for a iphone 4, but his wife threw out the receipt (he's not happy, I would imagine).... (I never throw out the receipt for any electronics, I always put it into the box, or staple it to the manual, at least until the warranty is over...) Has anyone ever tried to get another receipt from AT&T? (He purchased it at the local at&t store in Oklahoma.) All I could think to do is go back to the store and see if they can print another one up. Also, print the credit card statement showing the purchase, and the at&t web site showing the iphone data plan starting. Any advice would help.... Thanks!