I have recently received a letter from a debt collection agency, acting on behalf of 3 mobile company, claiming I owe them over £400. I had a contract approx 3yrs ago which I felt I was forced to cancel due to their refusal to fix my phone which had already been sent back for repairs once before that. Due to the mobile being broken I had to phone via the landline which cost me money & went on over several weeks. I repeatedly asked them to arrange a courier to return my phone, which was only months old, but the call centre workers insisted on taking me through their technical questions each & every time. It got to the point where I couldn't take any more & told them I wouldn't pay for a service I wasn't happy with. I feel I had every right as they refused to fix a faulty phone but now the trouble starts. Do I not have a leg to stand on, should I dispute it or should I agree to pay the money. I'm leaning towards disputing but feel I'll get nowhere. Any advice appreciated, thanks