If I could give this company negative stars I would. Since the beginning of the year we have had nothing but hassles and confusing bills. I sent numerous emails and got no response. Our bill in January was £84.01, in Feb we were told our bill would rise from £34 (for electricity) to £118 just for the electricity -a total of £168!!! This is impossible as we are exceptionally careful with our consumption and do not live in a large house. In March our bill again totalled £168 and we decided to change provider after failed attempts to contact U.W. We received a bill yesterday for £663.63!!! This was with no warning and no explanation. Needless to say we felt sick to our stomachs and completely horrified at the prospect of this. When we eventually got hold of Utility Warehouse, the customer service assistant was unsympathetic and simply stated this is what we would have to pay. We were told we could pay any amount today and then pay off the bill over the next six months. These problems all started when we got our smart meter ( after being harassed to do so) and no one has come to check that it is actually functioning correctly. The cashback/ discounts they offer are absolutely useless and in no way compensate for the excessive bills and poor customer service. I would NEVER recommend them to anyone and just wish that I had changed providers sooner. I cannot believe that a large company can actually function in this way and have nothing but regrets and empty pockets to show for our 2 years of loyalty to them.