[kgollop]

I have exactly the same problem. After several phone calls I got them to admit I was correct but they said the "system" would not let them correct the issue. They gave me a £30 credit. A week later someone else called me and said they could do me a monthly credit on the second box, saving me £5.50 a month so I would be better off, so I agreed to this. Firstly they took their £30 back after this, and then the £5.50 credit stopped after two months! I just felt like I was banging my head against a brick wall and eventually gave up a beaten man :-(