Tata Motors — TATA HEXA AC doesn't work

I bought car in Jan 2020, AC didn't work in the new car. Every service AC had to be repaired. It will work for 20 to 30 days and post that it will be like hot oven inside the car. Not happy with Tata motors AC service. Company shouldn't sell faulty parts to their customers. Spending so much money on new car and some of the parts faulty and don't get fixed after repeated service.
Hope to hear from tata motors on this issue and fixing it at once.

Regards,
Vinod
Bangalore