On August 22nd at 4.30pm I went into Car phone warehouse in Bournemouth to ask an sales assistant if he could ring up and ask for a PAC code, as my old one was wearing out and I wanted to upgrade to another handset. I had rang TalkTalk mobile previously asking if I could move my mobile phone bill to an upgraded handset, but I was told this could not happen. When I got though the man at the end in the Indian call centre asked why I was leaving and I explained because my handset was wearing out, and I wanted to upgrade to a better handset through Carphone Warehouse. He kept putting me on hold for long periods and when I asked for the PAC code I couldn't understand what he was saying so I had to ask him politely to repeat it. I have borderline learning difficulties and find it hard to hear things. When he gave me a PAC code, the Car phone warehouse assistant said it was not correct. The TalkTalk supervisor at the call centre kept insisting I hang up and call back again from my land line. This I couldn't do as I wasn't at home and it was a long journey back. Eventually I was put on hold for over half an hour and never even heard back from them! It was 5.30pm closing time by the time we got anywhere, I feel this is not good enough for a service they promise to so many customers in the UK. I feel I have been treated unfairly and this is appalling way to treat a customer. I will not be returning back to TalkTalk as the service which used to be very good and fallen considerably. I am now worried that after my last bill has come out of my bank, that they will attempt to take more money at the end of the following month. How do I stop that please? Please can you help me sort this please? And apology would be nice, but I am not holding my breath.