Accident damaged vehicle sold as nearly new Demo!!!

Good day. I purchased a Mitsubishi Xpander with 12000km as a Demo from CMH Honda The Glen in Johannesburg. The vehicle was sold to us by Ayanda Chapi. We were told that the vehicle was a demo and only had 12000km. Up inspection and collection, we noted the vehicle had in fact 18000km and had been advertised to us incorrectly. We however took the vehicle. When we dropped off our trade-in, it was never even properly received, inspected, etc. Our trade in was only ever confirmed and priced according to photos. We parked it in the parking lot at CMH Honda and no one signed it in or checked it or anything.

We are now at a stage where we need to sell the vehicle and are being turned down as multiple people have identified that the vehicle was in a significant accident prior to us purchasing it and had substantial body work! One individual commented that it appears the vehicle was rolled over!

This is horrific, as this was never disclosed to us, we were made aware that the vehicle was a nearly new demo and we paid premium price for that! We paid for a demo and received an accident damaged vehicle that is now being identified by professional eyes and we are now the ones to suffer as they are not willing to purchase the vehicle, and those that are offering, are willing to pay a minimal amount because of the previous damages.

We were conned here and are now in a terrible position. We are fortunate that the car did not give any issues on the road that could have caused my family to have an accident. Again.... IF I KNEW THE CAR WAS IN A SERIOUS ACCIDENT BEFORE, I WOULD NOT HAVE BOUGHT IT FOR MY WIFE AND KIDS. I would like feedback on this on how this will be resolved.