STILL no paper work after almost 2 month and no response!!!!!

I bought car from Group 1 Nissan the glen a month ago, almost 2 month now. I still don't have paper work. the guy who sold the car to me left company and now they don't want to do the paper work. I have a car with me but I guess this car is under someone else's name. I phoned, Email several times, my friend went to dealership(because I'm in Durban now), still no response. First, when I phone I left number to call me back but no one called. Second, Some lady (Manager?) took phone and she said she will do the documentation by Friday but its been 2 weeks after she promised. I will never gonna buy car from group1 ever again.