Lloyd — AC not working and it is under AMC

I made a complaint to llloyd on my AC on July 20 and still no solution.The service partner took the KkG number 3 times stating only if I give the KKG number she can order the parts .But when I checked with the Lloyd they say the complaint was closed as solved by the service centre.Today 26th September still the AC is under warranty also paid for AMC and the complaint is open.I called service centre many times and no solution .I was on a call with them today for 2 hours and requested for their nodal officer details and they do not provide this details and after holding the call for 2 hours the floor supervisor Vidya said she will put me on hold to get the nodal.officer details and disconnected my call.This is against the policy of the company as the nodal officer is the highest point of escalation and I am trying to reach him after 2 months of waiting and cheating .Hope some one will get back to me on this .