Scottish Power are the worst company I have dealt with. I had to join them in October because my previous supplier Tonik went into Admin. It has taken them 3 months to acknowledge I has a £97 Credit balance with Tonik which Scottish Power promised to honour. When I was forced to join Scottish Power they instantly put me on a very expensive Tariff which I could not change. Absolutely disgusting customer service. I have lost count of the number of times I have contacted them trying to sort ouit my Final Bill. I decided to leave Scottish power after a month & gratefully now with a new Supplier who are so much better