Like many of the reviewers on here, I switched supplier in October 2018 and still have not received my refund. They pretended that my new supplier did not give them the final readings (which they did, 3 times) and once I got my new supplier to call them while I held the line, they finally admitted that they got the final readings. Then they promised a refund but still nothing. Everytime I e-mail I get the same response that refunds are currently taking longer than usual. Over a month now since they promised the refund and over 4 months since I switched to another supplier!!! I have put in a formal complaint with the Energy Ombudsman. I am sure they are having financial problems, because these issues seem to be very common with Solarplicity if you read the reviews carefully. DO NOT SWITCH TO THEM IF YOU ARE CONSIDERING IT, ANY SAVINGS YOU MIGHT MAKE WILL COST YOU COUNTLESS HOURS AND STRESS. If you are already with Solarplicity, then I am afraid it is too late and you are doomed. The best thing you can do is reduce your Direct Debit as much as possible so that when you finally switch, you are not in credit.