Thanks for this informations, here have full info what is the rules on AT&T company for Unlocking. They say if iPhone have full pay the all fee will be available for unlock. I know many peoples first go out from USA and then ask at&t for Unlocking, in this situations not is possible to be unlocked. On me this is happen, I go in Europe and here not allow me to use other sim card. Must to unlock on other Unlock Company on internet and to pay here.