Disgusting service from Hyundai

Hyundai South Africa has total disregard for their customers. I purchased a Hyundai Tucson 2l. I complained about the braking system from day 1. Nothing was ever done to investigate, until finally the brakes failed. Took the car to Hyundai Northcliff, who had to have the car in twice, but still no reason was given. After the 2nd time they had the car in for the brakes, it started leaking water onto the vehicles carpets. I was told to bring the car in for another whole day. When I objected to this, I was told that the car would have to be here in the que. Still no news on the braking system, and what caused the brake failure. Attempts to reach management have gone unanswered.