npower acted just like a theft! npower charged me more than £300 for nothing I used. The corresponding statements were duplicates of others which I have been charged already. My account on their website is in an absolute mess - many statements and many cancellations - very, very difficult to work out what readings were used and from when to when. Phoned them and spent more than 2 hours on phone, spoke to 3 persons. At first try to deceive me, then finally admitted there were mistakes but didn't know how it happened. Logged an complaint and waiting - Angry! If not for my patient and a big effort, I would be robbed for the money - very difficult to find out. Because I have been paying by direct debit, and all payments were taken off from the balance.