Households in the UK are being urged to claim £400 to help with energy bills.
Many customers with prepayment meters have not yet redeemed vouchers, which are only valid for 90 days, to help with soaring bills, according to the BBC.
From the beginning of October, people and families should have begun to receive the first instalment of the government's Energy Bill Support Scheme. But figures from in-store payment company PayPoint revealed that only half of the expected value had been redeemed.