@Nigel1919. Those costs do seem much too high. Unfortunately the Ofgem price ceiling only applies to the default variable tariffs, so your Comfort Plus tariff is not included. Many people on here have won the battle to switch away from Comfort Plus and move onto Economy 7 for their storage heaters. Have a look at the discussions. I assume you have storage heaters, if you don’t then switch away from Comfort Plus as soon as possible. Are you really on prepay? You must be topping up almost every day, I thought Comfort Plus was a credit tariff.