This company is beyond the pale. I pay by DD every month, send readings every month and always have. In June 22 I was £253 in credit but despite this and £400 given to eon by the gov they send me an "estimated"bill in july for £1400. I've had no heating on since Apr, boil the kettle 3 times a day max, laundry 1 per month, it's a 1 bed flat and I live alone. Customer service is useless and clearly have a set dismissive answer to all complaints. I've phoned 7 times and as other reviewers have said, they say they'll look into it and call back. I've had no call backs. 6 weeks ago they tell me billing will look into it and resolve it, no call back but they added another £200 to my again "estimated" bill. I called again today and they assure me its correct as its a catch up bill because there was a long period with no readings which is a lie, I send a reading each month. Then he says we can offer ways to help - the line went dead leaving me fuming. I don't have the money and have no idea what to do. I am partially sighted and have no income. Avoid these parasites, they'll break you.