I was due an upgrade and rather naively went into a carphone warehouse shop to be met by a very eager salesman!... I specified it was an upgrade I needed and wanted to keep my old mobile number. He gave me the new handset with another SIM, he told me the number on the new SIM could be changed to my old number and if I gave it 2 days this would happen, 7 days later i was still not using my old number... I rang carphone who told me it would be my network provider who was responsible for the switch... I rang them who told me it was carphone warehouse who should do the switch! As you can imagine I was at my wits end, I sent the handset back and cancelled my contract with EE. 7 months later I receive a bill for £78 for line rental... apparently the salesman at carphone warehouse earns more commission on a new line than upgrades... Speaking to the telesales people at EE was a joke too... I asked one of them their name which was Dave, when I asked for his surname he said we do not give out surnames... what a joke!