“Really bad customer support service from www:mobiles.co.uk. I asked for an upgrade on existing plan which was coming to end of contract and they just sent me a new sim with a new contract. So effectively I had to contracts running in parallel. I called within 5 days to see what was going on. I was assured that the old contract would be cancelled. It never was cancelled. I have called several times and each time I hear apologies but no action. I was assured that a manager would call me to review resolve the problem and wad given a call back time, but no one had bothered to call me....”