I'm so glad I am no longer with this energy company. They persistently overcharged me (not just seasonable adjustments) and did not advise me of any cheaper tariffs available than the one I was on. They ended up owing me over £500 which I am yet to be refunded, despite having left them in August. Their customer service advice regarding the refund process has been contradictory and ambiguous. I have contacted them dozens of times now and been fobbed off with 'you're on a spreadsheet and we will send you a text or an email when it's your turn'. However, I have had at least two new 'final bills' for both gas and electricity generated since I left them, with a little of what they owe me skimmed off each time. I've gone from being owed £568 to £512 due to standing charges even though I left them months ago. I resorted to making a formal complaint so I can begin the Ombudsman process, which is the next step. However, the same useless, vague advice was given by the formal complaints team, 'we can't give you a timescale but you're on the list'. Great, thanks for nothing. It also took 4 weeks for my formal complaint to be addressed. It feels like they don't care about good customer service at all. In comparison, when I left British Gas a few years ago and they owed me money (>£800), I got it within two weeks of the end of my contract. I just want my money back and to forget they even exist.