Pothys – lenovo warranty issue

Hi my name is midhun By mistake i purchase a laptop lenovo G580 from your trivandrum showroom life style 5th floor on 27/04/2015 Now the lap is not working i walk to lenovo service center they said that as the machine was manufactured in the year of 2012 kindly contact your dealer for same . so i go to your store and they take over the product for service on the 27/3/2015 one Mr Vipin signed and sealed on the bill and said that wait for one week the will resolve the issue i agreed it then after call Vipin for status no one taking calls and if the pick call irresponsible talk with me the blaiming others and giving numbers of supervisors Mr Ramakrishnan no: 9633311323 and 8943346063 i dont know his name because till now he is not pick the call and Mr Ramakrisnan said that dead line date on yesterday 13/04/2015 now he is not pick the call is it my mistake that a product purchase from your shop .