BAD SERVICERS, DISAPPOINTIN g ME

I brought a Maruti Suzuki Car in October 2022 including two free services. The car's registration number is WB26R9267, I called the salesman many times but did not get any response, Last month I did my Car's emergency service from Maruti Service Centre, and its cost Rs. 60000. After servicing my car, it still has problems. Before servicing my car, I called the salesman many times but did not get any response. The salesman who convinced me to buy the car, now resigned. I tried to communicate with other salesmen, but they did not respond. Before selling the car, the salesman assures me that if any problem occurs regarding the car service, they will help me out, but now they did not pick up my phone. I called them several times but did not get any response. To date car's owner's name is not transferred.