OVO, I changed the energy supplier. I had £100 because I was on the prepaid meter. They never sent me a cheque and instead lied about this for the first couple of weeks. Then, they changed my final statement and meter readings, so I was in debt. Own them. I found the photos of my meters so I could prove the fraud. I got the message in my email that my balance was brought to 0. That it! NO MONEY BACK! Of course, I complain each time you speak with a different person. The CEO's office sends messages, e.g., changing the case number, downloading your app, or assuring me that my balance is 0. NO MENTION OF A CHEQUE By the way, they lock my account. I asked to provide a deathlock letter, but forgot about it! -changing the case number will solve their problems with me.