Meters not Pounds

I got my electricity bill this morning. The headline figure of being ~?330 in debt despite the ?94/month direct debit spurred me to actually phone in a more up to date reading. PowerGen, unlike British Gas, always seem to send their meter readers around during the week. The plea of the cards they drop though the letter box, to leave the readings outside, always seems to fall into the "I'll get round to that category". While on the phone to the nice lady it transpired the last actual reading was last August. It was still a bit of a surprise to see my account to switch from a debt to ~?750 credit. I shall be arranging for them to credit my account soon, no point them holding onto my money!