Bad Customer Service at Renault Alberton

My name is Thabisa Bunu . I bought a Renault Kwid Auto at Alberton Ranault in May. Within the first week of driving it, it just stops moving by itself. I then took it back to the dealership. Within a couple of days they called me to say vehicle is fixed it was software problems. I went to collect the car. Within 3 days same problem, i took it back. Again after a couple of days they said the problem is fixed, this time the problem was loose wiring on gearbox. After driving it for couple of days problem continues. I no longer want that vehicle as it a hazard. I don't feel safe nor do i trust them when they say the car is fixed. I don't want to compromise on my safety. They don't want to swap for another vehicle