I left Scottish Power a year ago. I left because the billing process went haywire. I was on a dual fuel tariff paying x amount each month and everything was good. Suddenly, Scottish Power sent me an email saying they were happy to move me from a pre-payment meter to a monthly payment contract. I hadn't sent them an email asking for any such thing and I wasn't on a pre-payment meter because I was on a duel fuel deal which I paid by monthly DD. Then my monthly bills started shooting up by huge amounts into over a thousand pounds on at least one occasion. I recall at one time as well,, Scottish Power sent me a statement saying I was five thousand pounds in credit. Eventually after many phone calls over a period of time, it seemed to get sorted out. I then changed my supplier. Scottish Power sent me a final bill. I still have the email. I paid it in full and they sent me a further email confirming it had been paid in full.. I have that email as well. This morning, after about a year from leaving Scottish Power, I have just received an email telling me I have a final bill for over a thousand pounds. What the hell is going on Scottish Power?!