Changed supplier on 4th Sept and final meter reading was sent. I am due £170 approx. as they overcharged me and put up my direct debit without my consent. I have not yet had a final bill although they sent me a bill dated 1st Oct. Have been advised that it takes 6 - 8 weeks to generate a final bill. {Nonsense of course} and then a futher 28days to refund moneys due. Have phoned and used online chat without any success. Note from other comments that I not alone in having these problems. Have ticked Not applicable as I have not received refund. Not a good company to deal with and would not recommend them even when original process to change to them went OK.