I have been complaining to EDF since February this year over a number of occasions where by I had received over billing, estimated bills after providing readings, refused refunds and been given incompetent customer service time after time. I left EDF in July and am still waiting for my account credit back after my final bill dispute ended in August. EDF are by far the worst energy company I have had to deal with since owning my first house in 2007. It has upset me that much that I’m thinking of taking all my evidence to the energy ombudsman with no resolution after all this time. Absolutely disgusting, stay away.