I renewed my account last year as they had the cheapest tariff. I had a shortfall at the time about £45.00 I think and was assured that the new lower payment included this shortfall. When I read my new statement today I found that I had used 16% less electricity but still had a £44.00 shortfall and So their figures dont add up. I went on to the chatline and after clearing security including my date of birth showing I was 62. I was asked if I wanted to give the name and telephone number of another contact in case of an emergency and did I have someone else who could take the readings for me! Who the hell do N power think they are! The operative did not understand my reply that I was 62 could still read and did not need a carer, so repeated the offending questions! I still didn't get a satisfactory answer about the shortfall and the reduction in usage. So after I refused to sign up for another 12 months He signed off. Needless to say ill be looking for another Electricity supplier