I can see this has been an issue before. New SIM just received requires Network Key. I have entered the 'personal unblocking' key, which is printed on the Sim card, but it does not work. Can anybody help.
The code on the card belongs to the sim, not the phone. Phone probably locked to EE. You do need to ring 789 (or 03456000789, chargeable)or use online message. I have several Virgin phones, I got the Network key(and Serv Prov code) . Codes for 2 worked. Gave up on one.
I tried ringing 789, but rather than speak to someone, it simply sends by SMS an online link. Live chat was a waste of time, firstly it is difficult to find the link and you end up going around in circles. When you do finally have a response, they ask you for your telephone password and when you say you don't know it they tell you to ring 789.
I tried to raise a complaint online, but when you click on the link it does not work - I wonder why.
Still, I live in hope and keep my fingers crossed that John might find a solution.