Honda's Poor Customer Service

I bought a Honda Ballade, 2016 model at KIA car dealer in Roodepoort, which i regret, the car is still under warranty but it is giving me problems. Honda Service Centre, situated in Corner Hendrik Potgieter and Jim Fouche, which was responsible for serving my car is giving me a run around. I took my car for a 75 000km service and after a week, the car started overheating to the extent that the oil got mixed up with water , I took the car back to the service centre which took them about two weeks to fix it, during the period I did not have alternative transport to move around and they did not even offer to loan me another car. Each time I had to call them to get an update of how far were they with my car. In about 3 days, after getting the car back I realised that there was a sound each time I hit the breaks, I called the service centre to alert them of this problem and I was told to bring it back for them to check what was the problem, to which they advised that they needed to order gear box kit, which was going to take 2 weeks to arrive. It's nearly 3 months now since I have been waiting for the part. The dates keep changing, the centre does not even bother to update me, each time I need to call them. Today i called them to check on the status, the service manager, Pieter told me that the part would arrive at the end of November, but on the 1st of November when I visited the Centre to check how far the order was, the service manager assured me that the part would arrive on the 15th November, and even gave a me a document showing the delivery date, when I called him this morning he said the parts would only arrive on the 30th November 2018 and if i have a problem with that I must take it up with Honda SA as there is nothing he can do. I am so disappointed and disgusted at the quality of service I received from Honda. I though Honda was a reputable dealer. Next month is December and would need to travel home. Each day I risk my life and my children's lives driving car that has a problem. I don't even trust that the part will ever arrive. Honda's service sucks big time.