Petrol mixed with water at Engen

On the 17 December 2020 around 16h45, I went to Ermelo Engen Petrol Station (Cnr Kerk St & Voortrekker Ave) to fill the petrol and. After i traveled +- 10km my car did not want to move. Then i called my insurance because i thought it was a mechanical failure. After Mazda has examine the car the found the water in the petrol.

I went to Ermelo Engen petrol station to complain about the issue, manager told me that i am not the first customer to complain, is nothing he can do is waiting for Engen SA.

So i would like to know who can assist me with this kind of problem. I have paid R12000 to drain petrol and clean the injectors.