Refusal to fix the new car while still under warranty

wish to lodge a formal complaint regarding the rejection of a warranty claim by Mahindra Clearwater and Mahindra South Africa. On 10 August 2026, my vehicle became immobile as I was unable to change gears. I arranged for a tow truck to take the vehicle to Mahindra Clearwater. On 12 August 2026, I was advised that the vehicle would be stripped to determine the cause of the fault. After receiving no update, I followed up on 13 August 2026 and was then provided with a quotation for the replacement of the clutch, which I was expected to pay for. I disputed this diagnosis as the vehicle is only 1 year and 5 months old, has approximately 35,000 km on the odometer, and has been serviced according to the manufacturer's requirements. The vehicle is used solely for personal commuting, I am the only driver, and I only travel to the office three times per week. On 18 August 2026, I met with Wayne and Troy at Mahindra Clearwater. During the meeting, I was informed that the clutch failure was allegedly due to my driving. I strongly disagreed and explained that I have more than 10 years of driving experience, this is my seventh vehicle, and I have never experienced a clutch failure at such low mileage. I was advised that the matter would be referred to Mahindra South Africa for review. However, after following up, I was informed that the claim had been rejected on the grounds of improper operation rather than a manufacturing defect. I dispute this finding and request an independent investigation. Given the vehicle's age, mileage, service history, and limited use, I believe the conclusion that the clutch failure resulted from driver misuse is unreasonable. I respectfully request your assistance in resolving this disput