Even one star this absolutely too much. Choosing this company we made the biggest mistake. We used this company for a year and we never understood their settlements. They collected from our account the amounts they wanted and when they wanted to argue that they did not want us to have too much money to pay at the end of the year and when we changed the supplier, they sent us finally £ 300 to pay. Wanting to avoid conversations with them (and so everyone said something else) we paid the amount just to get rid of this company. That's why I'm warning everyone now if you have respect for your own money, run away from Scottish Power