If I needed to write a review in my first 10 months with them I'd have written a 5 star review probably because I had no problems at all, reminders of meter readings, easy to provide online, same as every other provider I had. It only when it came up to £500 credit building up in my account that I found out how difficult it was to get them to lower my DD or get my refund back. Also discovered that they are using coronavirus as an excuse not to man the phone lines, though obviously the real reason is that the phone would be ringing off the hook with people trying to get their money back! They can't have people sitting at home answering phones or engaging in online chat because of Covid? It doesn't make any sense. Because of lack of customer service and this situation with credit building up I decided to leave. Anyway, I've had a different supplier(which actually pays good interest rate on any credit in the account) since 12 May, more than 7 weeks now, and still waiting for my £500+ refund, no final bill, no communication from Avro whatsoever. I wish I read these reviews before switching to them, I'd have nevver done it then.