Pathetic service, worst car I've ever bought...

I purchased a hyandai i10 in August 2017, 4 weeks after I received my car, my radio started giving problems, skipping the radios stations on its own, as well as disconnecting from bluetooth, when I took it in to the pietermaritzburg dealership, one of the consultants started banging and fisting the dashboard, after alot of arguing the radio was changed. About 3 weeks later, the sunroof button jammed, and refused to close the sunroof, of which the then removed the panel and left it with a whole in my roof for another week. About 10 months later, the reverse gear stops working, and only after a couple forces does it go into gear, as well as the radio starts acting up again. I then take it back to the service center, of which after they check to tell me the reverse gear is set that way, and they radio antenna was out. My car is not even 2 years old I now have the same problem with the reverse gear, the radio, the sunroof, and now the inside light does not even come on when the door opens.I called hyandai, and they told me that's its probably dust, without even looking at the car. This is a brand new car, and had being giving me nothing but trouble, the attitudes of the consultants and pietermaritzburg service center is disgusting, the only person that offers to help is the manager, Colin of which he refers me to a very unhelpful consultant.. I do not want this car any longer. I have had endless issues and want a brand new replacement immediately,or my money back. For a high class brand the service I've received and the problems I'm had is rediculous. I do not want to deal with the branch any longer and I now have reached my limit.