I'm having a bit of trouble unlocking my galaxy s6. It was locked to vodaphone and now I'm moving to EE. I have recieved my NUC code from vodafone and as far as they are concerened the phone is unlocked. The problem is whenever I put in my EE sim its says the Sim is locked and requires a PUK code to unlock, Having spoke to customer service and gotten 2 seperate puk codes the both say network unlock unsucessful. I'm a bit lost as even the guy in the EE store doens't know whats happening. Any help would be great.