Money Saving Expert Martin Lewis has issued an urgent message ahead of the price cap coming into force on Friday April 1.
He appeared on Good Morning Britain on Wednesday March 30 for a cost of living special episode where he helped explain the price cap and what people should do.
This comes as the energy price cap will increase to £1971 a year for those with typical use and for those on prepayment meters, they will see a rise of £708 a year.