Carrier Air Conditioner — deficiency in service

Address:

New Delhi, Delhi, 110037

I am using multiple carrier AC from past 7 years but since last year they are lack in services they least bother about their consumer i have multiple times registered complaint but no action taken so far
Last month, I requested complaint to customer care regarding fault in AC but they always send the third party person
Even they break my ac front grill
So i have no other option left to decline them
who doesn’t know anything about AC they only do cleaning
-they are not carrying any ID card
-they decline to provide any kind of bill
-they are very unprofessional
-they dont have proper equipment
Even I requested to customer care multiple times please send any authorised technician but they are not doing anything if even on this complaint they dont take any action then i have no other option left to move to consumers court
Atleast i made 5 times complaint to customer care
Attaching last 2 request i have made to them