Onida — ac service not given after repeatedly complain

sir please help me ... i purchase onida 1.5 ton split ac at ahmedabad, from febuary, there is no cooling in ac, so i wrote complain on toll free number of onida, but there is no reply and they cancelled my complain, i again complain at 9th april 2015 registerd mobile number is [protected] and complain number is 1504D[protected] and i repeatdly call customer care till now a days but they anser single after 24 to 48 hrs technisician solve yr problem but never reply from ahmedabad customer care or national customer care, daily call customer care but never reply or nor solution of my c0mplain... so i dispoint with onida company so plese solve my problem also my email address is [protected]@yahoo.com and my name is dr sirajhusen m, desai