Originally Posted by SteveT

Mouse, I really don't think you get it. There is nothing dodgy going on here though.
British Gas estimate your electricity use, and then send a bill based on that estimate. It is clearly marked as an estimated reading and you can phone in with the correct reading if you like, and they will send you a revised acurate bill.

So if they estimate £20 month, and after 9 months you haven't checked your actual gas use, they will have billed you for £180 worth.
If your actual use is really £30 worth a month, you will find that after 9 months you've actually used an extra £90 of Gas. (total £270 really used).
So, when the meter reading guy comes round, say 10 days after getting your bill, he will revise your bill to show an outstanding £90. It doesn't mean you've used £90 gas in 10 day though!

They seem to be in the right I'd say, which is a bummer for you, but u should check your actual meter readings against their estimates and update them.

I just got £207 back off N-Power 'cos I been paying them too much by direct debit and it all added up.

steve