Thanks i've just read that. My meter is inside the flat and as I work i've not had a reading as i've not been in. I don't see how I can be underpaying when I seem to be paying so much more than everyone else. I'd be interested in that backdated 12 months bit as i've not heard of that. From what i've read up on they can bill for up to 6 years.

I'll read that link though, thankyou.