Chery Randburg breaks windscreen & refuses to pay

I brought my vehicle in a roadworthy condition with no cracks on the windshield for its 15000km service. When I came to fetch it on the second day my windshield was cracked now rendering the vehicle un-roadworthy. I complained to the manager who said they will not do anything as its not covered by warranty. I was given a story about how when they lift the car on the hydraulic platforms the vehicle bends and this occurs. Therefore admitting it was Chery who broke my windshield. He said its a problem with the vehicles, therefore admitting its a defect. I then complained to the customer service of Imperial Select and got this response: \Unfortunately we cannot assist with the windscreen