By Jonathan Davies

More than three million households are being told to reclaim a refund from the big six energy suppliers.

Ofgem, the energy regulator, ordered the British Gas, EDF, SSE, Scottish and Southern, E.on and Npower to pay back money they owe customers. Now, the suppliers have launched a campaign to raise customers' awareness of their need to claim refunds.

The average customer is owed £50, typically left behind when switching suppliers.

Ofgem warned the suppliers they will face consequences if good progress is not made with the refunds. Over the last six years, the big six have accumulated more than £153m.

Anyone who thinks they may be entitled to a refund is being advised to visit

"This money has been left behind, and we are urging former customers to come forward and make a claim," said Angela Knight, the chief executive of Energy UK, which represents the suppliers.

"Suppliers must now do everything within their powers to return the money and prevent a similar situation from happening again," said Dermot Nolan, the chief executive of Ofgem.

"Failure to deliver on the initiatives announced today could trigger further action by Ofgem, including enforcement."

The Federation of Small Businesses (FSB) called on energy firms to repay business customers as well.

John Allan, National Chairman, Federation of Small Businesses, said:
“Energy companies are sitting on money that does not belong to them and it is high time they paid it back. Today’s industry announcement is the first step to doing this but it is important that companies do not stop at only paying back domestic consumers.

“Energy companies also owe money to many small business customers who would like their money returned. We would encourage energy companies to comply with their commitment to do so, and we are pleased Ofgem is monitoring this issue closely.”

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