Fines will be issued to any of the Big Six energy companies which fail to return money to former customers, a Government source has told ITV News Consumer Editor Chris Choi.
Energy: Firms have £400m of customer money they are not entitled to they should "expect fines" government source tells me
Energy regulator Ofgem has written to the leading providers calling on them to refund the more than £400 million found to be held in closed accounts.
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