Hi there. My friend is considering buying a used, white iPhone 3GS which is on O2 Pay as you go (UK), but the seller says that it has minor cracks running up from the dock connector on the rear. The question is this - will the Apple store require the original 3GS O2 pay as you go SIM to be present with it, if he returns it under Applecare to have it exchanged, or is the iPhone Applecare exchange only done on the handset and not the supplied SIM?. This is vital, as the seller may not wish to part with his SIM - we don't know as yet. Thanks.