Mahindra And Mahindra — Car not being serviced ever after sending 3 times plus parts are not replaced

Hi I have sent my car on 23 June for repair at Mahindra concept workshop Gurgaon but the same was not repaired properly. I sent back the car but again the car was not serviced when the car came. I had to send my car again 3rd time after multiple follow-ups but the same was not corrected even after 3 days they kept it with them. I have been asking them from the date of purchase that my car is having some shocker issue or suspension issue but everytime they have mentioned that it is fine and today at the 3rd visit when I forced them they said shockers need to be replaced and they asked me to pay for the same though I was told that we will replace it when required fre of cost.