VW Brits poor service

I took my car to VW Brits for repairs because my car was overheating on the 21 January 2023.To which I was charged close to R17 000 and later charged R5 700 for other part and service.

On the 08 February 2023 when I was suppose to get the car.I was told the car was still overheating and quoted an additional R56 000.

VW Brits failed to do a phone proper diagnosis initially and now I am expected to pay R80 000 worth of repairs.