I left this company several months ago after they advised they were raising my prices, despite my having signed up to a fixed price plan with them. So evidently not honouring their own plan. After I left them they continued to charge me twice each month, even months after having left them and being in credit they continued to take money from my bank account. No bills were forthcoming ever, and I received some bills only after requesting them 5 times. After I left I started to receive threatening letters from their collections department accusing me of non payment, despite them continuing to take direct debit payments from me, and despite my being substantially in credit. I was promised on several occasions these letters would stop but they did not. Furthermore Economy Energy now owe me over £300 due to them overcharging me every month. Despite multiple requests for this to be repaid to me it has not been forthcoming, even after contacting the ceo and complaints dept several times, trying to speak to them on the phone (waited 25 minutes to be hung up on) and live chat (20 minutes wait to get a response at times). I do not appreciate a company who cannot stick to the fixed prices promised, continue to take money from their customers who have left, send collections letters, and fail to repay what is owed. I can see plenty of other customers are having similar issues which is of great concern to me. Overall very unhappy with their service and suspect will need to take the matter further, I think ofgem should be investigating.