Dealership from hell

This dealer is the most disgusting place I have ever been to.I had my car traded-in on the 24 of August 2018 for grandi10 and everything was done except the the settlement for the old car and I was debuted for it yet I didn't have any longer.I have been **** to by the salesman called Selby Mokwena few times about the payment, everytime I asked him he would say it's been paid yet when I go to the bank to ask for my money back am told the car is not settled and Mr Mokwena would still continue lying..on the 21st of September I went to the branch again and spoke to their principal and he assured me that he will sort it out,up to so far nothing has happened. Now am scared that I won't be able to pay my other creditors because if they still haven't paid for the old car am going to be debuted twice which means more than R5000 will be out of my account paying for the car is have now and the one I don't have anymore. It's been a month already amade very disappointed .please helpI have a lot of things to pay for i really don't need this.