Con Artists Am with Npower for both my gas and electric and up till February 2014 paid by direct debit for both, but after numerous phone calls did not receive a bill for either for almost 2 years. Then got back dated bills in January 2014 showing I was in credit by over £900 for gas however got another bill in February 2014 stating I owe them over £1200 for gas. I rang was told I hadn't received bill for 2 years and was told they had problems with their system which isn't my problem. Was told that they would send my account to the back office to investigate and someone will be in touch once resolved (28 days max) Since have made numerous calls and keep being told the same thing. No one can explain how I was in credit and then in less than 4 weeks owe them over £1200 for gas all I keep being told is there is something not right with your account (tell me something I don't know) stopped my direct debits in February 2014 as they were going to take out over £300 a month. Still waiting for a reply have also sent emails but no reply. Keep being told my account is on hold till this is investigated but then I get letters threatening to cut me of and have to ring up again just seem to be going in circles. Not the first time this has happened but have had enough switching to British gas. Keep away from this company is all I can say.