All billpayers have been advised to do the same thing before March 31 by money saving expert Martin Lewis.
Martin has said it's important for everybody to check their meter readers as bills are set to increase dramatically.
Ofgem, the regulator, has confirmed it is increasing its price cap by 54% from April 1. It will see the limit a supplier can charge for each unit of gas and electricity increase, meaning a rise of £693 on bills from £1,277 to £1,971.
READ MORE: Mum cut heating bill in half using Martin Lewis tip
Martin has advised households to take a meter reading on March 31, so you can then go to your energy provider and explain exactly how much energy you used before the price cap increase came into effect, reports the Mirror.
"That way you draw a line in the sand that says to your energy firm, I've only used this amount at the cheaper rate," said the MoneySavingExpert, speaking on his ITV Martin Lewis Money Show Live broadcast.
“Don't start charging me more on the higher rate and estimating I use some of it afterwards."
He also reminded those who were on older prepayment meters to check if they could “stockpile” energy now. If you top up now, but use this energy after the price cap changes, you’ll be charged for your gas and electric at the rate that applied when you topped up, goes the theory.
But if you have a smart prepayment meter, the stockpile trick sadly won’t work, as these meters are updated remotely with the new rates on the day of a price change.
Eleven of the biggest energy suppliers - including British Gas, SSE, E.on and EDF - were contacted by MSE and only one said the stockpiling trick wouldn’t work. Scottish Power was the only provider that said the additional amount you would've paid under the new rates would be recovered by adding a small amount of debt to your meter at your next annual statement.
