Nissan Navara damaged on cite

I bought a new Nissan Navara 205 from McCarthy Nissan Randburg almost a month ago. I have not seen my new vehicle for more than 3 days in a row as I had to send it back for different failures every time. First they scratched the side bars and the back bumper on delivery of the vehicle. Then we noticed that the plastic inside the car peel's off, so they had to replace the mid section where all the control's are. Then they scratched my dashboard in the process and they had to order a new dashboard. When they fitted the new dashboard, they managed to make the steering column skew and then they tried to fix that and could not. Now they say they have to dismantle the steering completely. How do you get from replacing the dashboard to having to totally dismantle and then maybe brake further , the steering hub. Then there's the tonneau cover that is fitted so stiff, that they themselves could not open it after fitment. But I must be able to...? Nissan Randburg have succeeded in making this my worst car buying experience ever. Now they still have my vehicle and cannot tell me when I will be able to drive it again.. I just don't know why I should pay for a vehicle I don't even have...