EDF Energy has said sorry for pushing a £2,100 energy deal that was £400 more expensive than its cheapest tariff.
Energy bills have been soaring due to the rising cost of gas and the Russian war on Ukraine, and experts warn they could soon hit £3,000 for many homes.
Most household energy bills are now regulated by the Ofgem price cap . This limits the yearly price of power to £1,971 for people on variable rate tariffs using an average amount of gas and electricity.