Symphony Limited — regarding symphony cooler repairing

Address:

ALAKH RING ROAD NEAR CHANDNI CHOWK MAYAPUR, 497001

I had lodged a complaint regarding repairing of my symphony cooler on date 24.04.2019, till date no action has been taken regarding my complaint.
I have been trying to knock each & every door i could to inform the symphony care center at the city as well as customer care, but none have been responsive.
Symphony care center at ambikapur gave me contact details of the mechanic but he has been very stubborn and non responsive in his behaviour.
I will look forward to your reply & resolution for my problem or else seek third party assistance.
Also, the temperature in here ranges from 38 to 40 degrees so if you can then please suggest me a way to survive in this scorching heat or else follow up immedietly.