Courtesy car

I bought my car cash in September 2020 with Hyundai Weltevreden Park. On the morning of Friday 13 May, i saw that the car was over heating and that the water bottle had a crack in it. I booked it in with them immediately. Today being the afternoon of Monday 16 May, I have had to follow up with them myself as to what the status is on my car. They call me back a good while later, and advise me that I will be without a car for the next "21 days" because they are waiting for a part to come to South Africa. Fine, all good and well. But how do I do school drop off and go to work etc for the next 21 days? The car is still under warranty. My insurance will only give me a courtesy car if my car has been ****** or if iv been in a accident. Surely Hyundai needs to provide me with a car to use in the mean time as this is no fault of mine? I just got off the phone with the manager at Hyuandai Weltevreden, who assured me he is working on an alternative and will give me a call back no later than Wednesday 18 May with a solution to get me mobile. I will wait until then, but in the mean time, i am so disappointed in their service. If i had not called back now to find out how am i supposed to travel to work for the next 21 days, they would not have cared. One would think, after purchasing a car CASH you would get some kind of "service". Or maybe that would be far fetched. Will hear on Wednesday, in the mean time i now have to make a plan for my children to get to school and home again and i have to let my boss know, that lack of service on Hyuandai Weltevreden's side, is now impacting me getting to work. WOW!