Energy supplier EDF has agreed to pay a package worth £4.5m - including £3.5m to customers - after an Ofgem investigation found it had breached its marketing licence conditions.

The payment, imposed by the regulator Ofgem, is the biggest of its kind.
It will see £50 paid into 70,000 accounts of what EDF describes as its "most vulnerable customers".
EDF denied that the amount was a fine or penalty - although it the total of £4.5m includes a £1 penalty.
"EDF Energy has done the right thing by stepping forward and recognising there were weaknesses in its sales processes," said Sarah Harrison, Ofgem's senior partner in charge of enforcement.

"The firm also took the initiative to correct these problems during Ofgem's investigation."
And the energy supplier said that its moves were important to restoring "customer trust".
"EDF Energy has engaged in a constructive dialogue about shortcomings in the firm's sales processes and has taken a proactive approach to addressing those shortcomings," the firm said.