After swearing I would never use mobile.co.uk again several years ago when they wouldn't pay my cash back as they claimed they didn't receive the bills I sent them. I have folded and used them for a new contract but only because it was not a cash back deal. Be very wary of those as they will do anything not to pay. This time my only issue was the delivery did not turn up until three days after the date it was first notified as delivered but I was still charged from the original delivery date despite me not having the phone. I was also not notified that my delivery had been cancelled so had to wait in two full days and I had to chase them to find out why it hadn't turned up