Please help! I have an old iphone and wanted to purchase a new 3G for my wife without signing a new contract. I was eligible for the upgrade so I went for it, got the new 3G. Immediately they deactivated my old iphone and activated the new 3G. I want to reactivate the old iphone with AT&T and unlock the new 3G to use with T-MOBILE. Any ideas on how to get my old iphone back with AT&T?