I got my iPhone 4 today. Brought it to AT&T, they activated it. All seemed well. When I check my contacts, it showed "My number *my DAD'S number*." My new iPhone 4 was activated with my dad's number. I walked back into AT&T and they said it was because I used his upgrade. I told them that I called AT&T previously and they said everything would be alright. They reactivated my phone with my number, but my dad will have no service until he comes home and I give him the SIM card they provided me. This isn't even the first time this happened either. I had problems with texting a few months ago and they made the same mistake. Now we have no way of getting in touch with my dad until he gets to his office later today... Great.