A very bad service

A very poor service I received today around 09h00 AM in kalfontein Engen under midrand i filed up my tank of fuel 95 unleaded cost of R1003.75 i only drove about 300 meters from the garage and my car just switched off the engine it never started again i manage to push a car to nearest bush mechanic next to the engen garage where i filled up the mechanic open the fuel tank and i was filled with mixture of fuel and water i reached out to the garage manager and supervisor they even saw water that it was in the tank they mistreated me saying that i dont service my car that's why the tank was filled with water they dont sell water inthe garage they petrol so they dont care i must fixed my car its not their business. I had to drain 44 liters of fuel and buy new spark plugs.and pay the mechanic..i will neve go to any Engen filling stations after the mistreatment i got they these guys