The government is providing £400 to help households with rising fuel bills. Customers paying by direct debit or “smart” prepayment devices will receive the money automatically, while others will receive a voucher they can redeem at a local Post Office.

More than four million households use prepayment meters in Britain, but less than half are smart devices. Charities are concerned that vulnerable and poor people will struggle to access energy help.

Winston Carrington, a grandfather in his 70s, is worried about covering his energy bills. He is now spending £5 a day on energy.

The government is giving £400 energy bill discounts to households in England, Scotland and Wales. The payment will also be given to households in Northern Ireland that pay an electricity bill directly, but are still struggling with high bills.

The government is hoping that all households will engage with the scheme, but a big push is needed to ensure that those who need it most do cash in their vouchers.