We have just found out that British Gas have overcharged us - we fixed our tariff for gas and electricity at the beginning of the year and it now turns out we are paying the current standard non fixed rates and not the fixed rates and have therefore overpaid quite alot. They are trying to rework the numbers and send out revised bills. On the basis we spent about £30 in calls to then when we fixed the tariff in the first place do they pay compensation other then sending the correct bill now? They have basically had my gas and electricity account in credit by huindreds of pounds all year as they have been overcharging us and if we had not caught this now it may have gone on for years. Anyone know what they are liable for if they mess your bill up? Thanks very much.