Whatever you do DO NOT go with Scottish Power! Worst company I've EVER dealt with. Even when you leave them you can't get away. I left Scottish Power 6 years ago (as a result of poor service and following a lengthy complaint) and they started billing me again for the amount of the energy I used for the full 18 months that they were my provider 5 years later, even though I fully settled the account when I left. Nobody did anything to help me, even when I raised a complaint and escalated it through to all the levels their complaints procedure states. Not once did anyone give me an update, looked into my complaint or called me back after the numerous calls I made to get an update. After 3 months of waiting for someone to deal with my complaint I raised it to the energy ombudsman who, after investigating, confirmed there was nothing to pay as I paid for all my energy usage. Although Scottish Power agreed to their decision they have now started billing me again asking me to pay instead of putting my account right! So the stress of dealing with this company continues! They should be shut down, their service is the worst I've ever experienced and all they do is con and try to steal from their customers. Disgusting! 1 star rating is way too good for them!