Torn Spare Wheel Tire.

In August 2019 I bought a bakkie from this dealership not knowing that the bakkie had defects, weeks later i took the bakkie back to the dealership hoping they fix the problem. Three months later they called me and said the bakkie is fixed i must come pick it up. I took the bakkie back only to find that the bakkie was not fixed, then I took it back again and still they couldn't get it right. Then I got an advice from a friend to take the bakkie to a private mechanic and within no time the bakkie was fixed and they charged me R4 000 of which I paid from my pocket. Know lately I discovered that they gave me a bakkie with a torn spare wheel tire, i went back to them and showed them the spare wheel, unfortunately they do not want to change the torn tire for me. I'm not happy at all with VW booysen.