Waste of time and money!!

I have hired a car from Europcar in Capetown and collected it at the airport when I landed. I got there late around 11.15pm so it was too dark to check the car. The next day I noticed that the reverse gear didn’t work well which caused me to get stuck and so I asked for the car to be changed. They wanted to change it at 11pm the next night which I said was too late so they said it will be changed in the morning. They came late to change the car but I was in a hurry so I did the change and left. While on the highway I heard the breaks making a noise so I called again and they said they would come out again. This time I waited 2 and a half hours for them and they didn’t arrive till I had already left my accommodation. The car was changed again in the night to a little car that I didn’t get to look at until I got home. The drivers side door does not close properly which o realized after the neighbor told me the car isn’t locked and the mirror is like a film which is dreadfully painful to look at. I paid money for a car in working condition and I’m left with a car that would cause me to be in an accident! Why are their cars in such a terrible state? What did I spend money on?