Householders with prepayment meters are being urged to redeem their energy vouchers to help with their bills before the expiry date.
According to the BBC, numerous customers with prepayment meters are yet to claim the vouchers that were given out as part of the Government's energy support package. Since October 1, households have received an automatic discount to their energy bills.
The sum of £400 is being issued in instalments to everyone. Those with non-smart prepayment meters have been given vouchers that they can redeem - but these vouchers have an expiry date.