Worst after sales service ever

Garden City Motors (Chery) Shelly Beach KZN.....O man, my worst experience ever. The after sales service is non existing. Bought a brand new Chery Cross CSH from them. Few days later I had a complaint. They told me to bring it in. I did and left it there for the day. They couldn't fix it and advised me to bring it for a longer period. Took it back for 5 days. They couldn't fix it. They said they will get more info and call me back. It's been 26 days and no reply. They blocked my number so I can't get hold of anyone. To visit them and drive back home again is 84km.