OVO- Terrible company and shocking customer service ! Account moved from SSE to OVO. Service has been shocking since the move. Bill comes in with an unexplained balance adjustment ( is this legal to do without full explanation to the customer) for £900+ - no accompanying rationale etc just tacked into monthly bill. In addition Meter reading estimated incorrectly at 10,000 units too high. Account thus now in deficit. Called many times ( always on hold for 25-40mins), hung up on twice and no resolution despite 3 people saying they would fix it. Emailed numerous times with pictures of the correct reading, meter pictures etc and asked them to correct it - nothing done. They then crank up my direct debit by an extra £250. To sum up error on their part, called and emailed over and over agin and no resolution in sight. Customer service is absolutely shocking and this aggressive balance adjustment and large debit debit increase isn't treating customers fairly. Shocking company avoid avoid avoid!