these companies take the mick i get my gas and electric from the same supplier and pay directly debit, when i first bought my house we were payin £75 a month, but the hous remaine unlived in whilst we renovated and when they next came for a meter reading obviously it had gone down substantially so they reduced by direct debit to £12, i queried this and they confirmed it was correct,, i gave another meeting reading a few months back and got a letter advising that my new direct debit would be £350!!!! i called them to find out what was going on, i found out evetually that they had been taking only £1.10 a month for my gas and hadnt thought to check it was right and now they are wanting all this money, i complained and they have lowered it to £150 but still it was their fault not ours, one of their advisers even admitted that. rant over.