I have just brought a new phone (unlocked) but when I put my SIM card in it wouldn't register to a network. I switched it off and on again a few times, cleaned the SIM etc.
I ordered a replacement SIM card from EE but that also does not work. I now have the error message SIM not provisioned for voice showing. I have tried putting my SIM card back into my old phone but the error message remains and I can't register to a network.
