NPower are the most incompetent company I have ever heard of, how they are still in business is beyond me. I rang up to give a final meter reading and get a settlement figure when I moved house in May only to be told that I was actually £43 in credit. Imagine my surprise when a month later I was presented with a bill for £248 and no explanation. They have made it as difficult as possible to get in touch with them to make a complaint and can't quite grasp the concept that they should not harass people for payments (threatening bailiffs etc..) when they payment figure is still in dispute. Take my advice, DO NOT go to NPower for any of your energy needs. Avoid like the plague!!!