How have you got on with this. I have a similar situation. I am a consumer and appear to be billed by British Gas business. They were taking the money via direct debit for 6 months and appear to have stopped. i only realised when I moved supplier and got a closing bill. The first closing bill was £45000!!!! which came as a bit of a shock. I have had over 35 revised bills from them in 2 months and they seem to have decided I owe them £2400 now. They are insisting this is paid immediately. How can they do this, I am a consumer, how do I end up getting hounded by a supplier who thinks I am a company. Any ideas.