Toyota groblersdal

I bought a car at groblersdal Toyota second hand rav4 that had only traveled 46 000 kms in November 2018 early January 2019 the roof started falling off i then started thinking the car might have been involved in some kind of accident. I went to the dealership they assured me never. They said to me the roof clip was broken during tracker installation. They then promised to install a new clip to this date i am still waiting the roof keeps falling off i have been in contact with them every other day for the whole year its lie after lie I am soo disappointed this was my first Toyota purchase