Martin Lewis has urged people who have prepayment meters to check if they are eligible for the government’s £400 vouchers.
From October 1, households should have begun to receive the first instalment as part of the Energy Bill Support Scheme.
But millions of pounds meant to help those struggling with their energy bills has gone unclaimed.
According to PayPoint, only a little more than half (53%) of the 800,000 vouchers it has issued have been redeemed so far.
It means that households are so far missing out on around £27 million in support that would be paid by the government.