So I brought an Iphone from one of my mates. He was on tmoblie and I brought it for 80quid. When I tried to go throught the setup process it said that my sim card wasnt with the carrier thats on the iphone or something like that. Im not talk mobile btw. Anyway he phoned up talkmobile and they said thatcthey can unlock it for 20 quid but it could take up to 20days now im stuck with an i phone that doesnt work. What will they do in that 20days. After that will i be able tto put my sim card in to it and setup my new iphone 4. Any help is good thanks.