Hello, I have spent HOURS after work on the phone with AT&T and they seem to be unable to help which has put me in a pretty big bind. A month ago I contacted AT&T customer service to UNLOCK my two year old iPhone 4S. I went through the proper channels and I received a text message that stated my unlock was approved and the iPhone 4S was officially unlocked. To activate the unlock they said to contact Apple.com. Instead I just contacted AT&T asking what to do next. The lady told me on AT&T's end the iPhone is unlocked and everything is taken care of I sold the iPhone 4S on eBay and the person that purchased it claims the iPhone does not work with his SIM card. He is claiming to use the LIFE carrier in the Ukraine. He says he took the phone to his carrier and they said it is still locked. I spoke with AT&T again just now for over 1 hour and 40 minutes. They confirmed 4 separate times that the iPhone 4S is in fact unlocked but he must go through the final stages of the process to unlock it. I believe they said he can contact APPLE or go to an APPLE STORE to help with the process. Or just RESTORE the phone in iTunes (not from backup) and it will activate the unlock. The guy claims to have done the process with the carrier (LIFE) several times and that it STILL will not work. On my end AT&T was able to give me an e-mail that states the iPhone was unlocked, the case #, the date of the unlock, and everything like that so I am covered. BUT I really do not understand why this would not work and I want to help the buyer out. ANY IDEAS OUT THERE?? Everyone seems to be stumped. If he takes the iPhone to an APPLE STORE will they help him with the process (maybe he is doing it incorrectly?) Thank you in advance!!