Avoid like the plague. Incompetent customer service. Overcharged. Ombudsman intervention required ... twice! I had a leak after my meter, as SGN confirmed. This resulted in my being charged four figures worth of gas which was not in fact used. Ovo flatly denied this, despite my and SGN's evidence to the contrary. Around 8 months of incompetent customer service followed, culminating in my having to make a formal complaint and going to the Ombudsman. Predictably, the Ombudsman was appauled and found in my favour on all points, required Ovo to apologise, compensate and refund. Of course, I've now spend 16 days trying to get that refund and Ovo's customer service is get again wholly incompetent (e.g. offering to refund the credit in my account, which is my money, rather than actually giving me the money they agreed with the Ombudsman they'd pay me). Ever email which comes back from customer service appears to willfully misunderstand the situation and fails to move anything forward. So I'm back off to the Ombudsman again ... I don't know what's going on - whether the staff are overworked, incompetent, or there's a deliberate policy of ignoring the substance of customers complaints and/or gaslighting them, in the hope that they'll give up. I'm not such a customer, but I've wasted days and days of my life on this, which has not been adequately compensated for. I will of course be leaving them.