Purchasing of petrol mixed with water from Mathabe's Service Station in Vaalbank, Mpumalanga Province

On Sunday, 25th March 2018 around 07H03 I bought a 95 Octane Petrol for R100 at the Service station listed above. I was driving a white VW Caddy Bakkie (HFY873GP) and once the petrol was filled from the car I was driving, it started cutting petrol. From there, I had to diagnose as to what is the problem with the car. I spent money trying to figure out as to what is the real problem with the car. After some time, I was advised by motor mechanic to drain all the petrol since we could not establish as to what was the problem with the car. I had to buy another petrol from a different filing station and from there, that is where I realized that the petrol I bought from the filling station identified above was mixed with water. I then went back to the same garage to report about the petrol they sold to me which was mixed with water. The Service station has since refused to take accountability of all the expenses I incurred as a result of their petrol that was mixed with water. I need them to clean my petrol tank and the carburetor and this was as a result of their petrol they sold to me that was mixed with water. Hellopeter, can you please then intervene in ensuring that Mathabe's Service Station takes full responsibility of the trouble they have caused me and surely I am not the only one who has been affected by this mix-up.