Mahindra SA not helping clients

It's 2 years later but it's been bothering me my wife bought a Renault captur at a Mahindra branch in the east not sure is it Edenvale but there is sars branch not far from it. We took it for a service on the 07/07/23 and had to pay R14735.90 because they could not provide us with the previous service history so that the extended warranty can kick in. My wife Se Mahindra SA an email and she never got feedback because the Mahindra dealership wouldn't assist. Both Mahindra SA as well as the dealership didn't reply. We took the car for a service in may again this year a month later the car broke. My complaint is not about the recent service it's about Mahindra SA not assisting the 1st time when we not serviced they didn't even reply to my wife Dimpho Thomas