What do the energy firms do when they get complaints from their customers? They do nothing. Now, they are being told by a regulator to improve the way they deal with complaints from customers. The problem is that fewer than one in four customers were satisfied with the way gripes were dealt with, said a poll for Ofgem. Issues included suppliers failing to return calls and the attitude of staff. One supplier - EDF Energy - was accused of not recording complaints properly.

EDF Energy said it had updated its training and was confident that its complaints were now managed suitably.