Maritime motors port Elizabeth

I am very upset with the service I received. My engine light was on and last November I took it to Maritime motors to get it fixed. They said my thermostat failed. Then they replaced it. In December I went to DBN so my car was parked off the whole of December. In January my engine light came on again. Then they say it was my water pump. They got it fixed. A week later my light came on again. I took it again to them they say it's the thermostat again. My brother took the car in the next day to tell them that the car is not right but they assured him its normal. After a week the light comes on again. I called Neil who tells me to bring the car in again for diagnostic. Its a very big inconvenience for me to keep going there everyweek. Its costs me to ficx car and also Remember each time my car goes in I must hire a car to use as I run a business. I do not have another car to use. This is really stressing me out. These people keep on telling me to bring the car without any concern as to what vehicle I'm gonna use wen my vehicle is in. My car is booked in for tomorrow. And it's really stressing me out cos it's an ongoing thing. I cannot spend anymore money on hiring a vehicle.