I have a giffgaff sim which Ive been using for a while and I have put it in my new iphone but it isnt showing and signals for the giffgaff network. What can I do to resolve this?
Has the SIM worked in your old phone? if so, are you sure your new iPhone is unlocked? As a giffgaff SIM will only be accepted in a device that is unlocked or locekd to the O2 network.