Worst experience ever!!

Bought the AMT car in June 2021, it has been around 9 months, and had to visit service center and showroom more than 9 times. There is issue with engine power, AC does not provide cooling, too much noise while driving. Worst experience at service center and showroom, they didn't even acknowledge the issue for initial 6 months, and now, when they did acknowledge, they don't have solution for the issues.