Makro's poor quality merchandise

Makro sells poor quality merchandise sourced from 3rd parties with purported warranties that they void at the first instance of any damage. I bought a kid's electrical car from Makro, within less than a month of use it was damaged. Makro is refusing to assist and plays broken telephone between me and the service provider. They want to void my warranty (which terms were never shared with me) for a damage they say costs R200. They are now holding the car ransom and depriving me of the use of a car I spent money on.