HYUNDAI SOLD ME A CAR THAT WASNT ROADWORTHY

what an absolute nightmare!!! bought a vehicle that wasnt roadworthy from Durban South 2 years ago and im still have drama due to *********** staff. dealer principal Raj wont step in and assist. Car was given to me with a broken seatbelt and no spare key. Mala told me as I was leaving that i must make a key!!! eventually after months they "found" the spare key but ultimately would have wanted me to waste my money. then the rust was picked up 2 months after purhase and never resolved. I am expected to beg and do the jobs!!! now there is more rust and i must beg again. lets return this car & refund my money. i wont be treated like this!!!