LG Electronics — Poor AC service

Address:

600100

I had bought an lg air conditioner on 12 03 17 from chandra traders velachery chennai
The installation was not properly done for it the whose coming into the indoor unit was not sealed from outside
Because of that ac went down two times
When i asked the authorized service centre refimac chennai they sent service engineer to repair but the correction was again not properly done as they said the installation fault cant be corrected and i have to call
Installation department and i am totally upset by coordinating with them
They are the worst service providers and they have non professional tele calling staff who attend when i call for a complaint

Please check and what we can do on this.