[Resolved]  Voltas — AC consuming too much power

A couple of days back I purchased a Voltas Vertice Elite 1.5 T window AC from Efficient Cooling System, gurgaon. I was told that the AC would consume between 1-1.5 units per hour. But the AC is consuming more than 2 units per hour ( 2.2-2.3 to be precise). So I asked the service engineers at the voltas service centre in Gurgaon and they blatantly told me that they can't do anything about it and instead told me to change the meter. I even dropped a couple of mails in the Service enquiry section on the Voltas website, but haven't heard from them till date. I feel that I have been duped by the false gimmick of Voltas. Can anyone help me out.?