I bought this Iphone 5 from my dad's friend that is unlocked for $130. We went to t-mobile since i had a tmobile sim card. Then we told one of the people that work there to factory reset it since it only had 4.7 GBs of memory left. The guy then put in the sim card and it won't read it, its specifically for verizon now. He told us to call apple for directions to unlock it but apple says that the phone is already unlocked. What to do?!