Sales person contacted me to offer an upgrade. He said hes calling from Carphone Warehouse. I said I am interested to see what offers they have on Iphone 5c but just looking at options. He gave me the deal details, told me to try the phone and if I don't like it, send it back. I said I am not gonna make my mind up today and then: He unplugged me! And The phone arrived 5 days later. I had to spend hours going from o2 to carphone warehouse to e2save to finally be told that they will stop the contract once the phone is back and then it will take up to 5 working days. So now I cant get my sim only upgrade on time, which was going to be with e2save and I am not a happy customer!!!