Samsung — Complain about the Split AC

Hi

I want to complaint against Samsung India Ltd,I had bought a Split AC from Samsung in April 2011 and It has been giving continuous problem.Each time the gas of the AC leaks and the person comes and fills and does not tries to find what is the actual problem.This year again same thing happened on 29th March 2013 and then again on 3rd Sep 2013 ,I got the gas filled for 1500 rupees and then same problem started on 6th Sep 2013 and I logged a complain with complain number [protected] and then again called on 12th Sep 2013 , a technician turns up and says that coil of the AC needs to be changed.I asked him to go back and I will confirm with the Customer Care.I have kept on calling customer care but there is no response.They keep your phone on hold and then do not reply.
I want that an action should be taken against them.

Thanks
Priyanka