iPhone 4 Unlock time
Hi, just over a month ago my iphone 4 contract ran out and i decided to change networks and upgrade to the iphone 5. As i wanted to unlock my old iphone 4 i requested an unlock and received a conformation email from vodafone that this had been completed. 3 weeks later the iPhone is still locked so tried to chase it up however they told me they it was apple taking a long time as they had passed on the request. So just to check I am 'unlocking' in the correct way this is what ive done, restored phone, insterted new sim, then run through the activation process on the phone where it comes up telling me "Only compatible SIM cards from a supported Carrier may be used to activate iPhone.". As its now been over a month i just wanted to know whether it normally take this long and if not what I should do now.
iPhone 4, iOS 6.1.3