Around 20,000 households in Northern Ireland have still not redeemed their £600 energy support vouchers.
The Post Office said there is less than two weeks left for households that were part of the initial 500,000 rollout to redeem their voucher before it expires at the end of March. It said that more than 95% of vouchers have been redeemed.
Those who pay their electricity bills by direct debit received the £600 Government support directly into their bank accounts. However, thousands of others received the payment via a voucher posted to their house to be redeemed at a Post Office.