As many as 2.1 million households across England and Wales could have been hit by large late bills in the last year because energy suppliers initially undercharged them.
Back-billing happens when customers have been undercharged for their energy for a period of time. It can be because a customer did not pay a bill, but often it is due to supplier mistakes like underestimating bills or not investigating a technical fault.
The average back-bill was for £206 – with 15 per cent of those who had been back-billed saying they were charged more than £250. But people contacting the Citizens Advice service have reported much larger back-bills.
Read the Media Release here . . .