Staff Negligence

Since I've moved to a different suburb in April, I have been refilling my car with fuel at the Engen next to the 24 hr spar in Hayfields in Pietermaritzburg. Previously I filled my car at BP at Cascades before I moved and never had a problem. Since I've been going to this particular engen in the last 4 to 5 months I have now encountered a third time where my car has been topped up with water but the cap has not been placed back on properly leading to my car overheating - by a different staff member each time. I should NOT have to check something so trivial, something your staff should be competent enough to do themselves. This third time we were on a long trip and the car overheated so badly that the head gasket blew! So firstly, it has cost me R100 to put new antifreeze in the water. It has cost me nearly R500 to get a tow truck to tow my car home from my current location. And I dont even want to know what it will cost me to fix the blown head gasket. Why? Because of your negligent staff! I don't care what your disclaimer notice says, you are supposed to be offering a SERVICE and keeping customers happy. Not almost DESTROYING their vehicles for poorly or lazy or *********** or ******** staff! I WILL be putting this on social media and spread by word of mouth and go to the papers about this because it is UNACCEPTABLE. So thank you Engen, for setting me back financially and putting me into debt AND for wasting 5 hours of my weekend over your negligence. I REFUSE to use your "services" EVER again.