My elderly parents have almost £800 credit on their Bulb account which is a lot of money for them. Frustratingly, the website doesn't allow them to take their direct debit payments down to a certain amount. I understand that the idea is to have some credit built up over the summer to cover increased usage over the winter months but we're heading towards Spring now. We give readings every month so the statements are accurate. So I don't understand how this has happened? Has anyone successfully called Bulb and asked them to refund the amount in credit? I've heard that they usually won't if you pay by direct debit but I'm going to try anyway. Thanks.