VW Polo 1.2TDi Bluemotion

I bought a used VW polo 1.2 Bluemotion from the dealership on the 31st of October 2015. The spare key was not working, the service that was supposed to be done was not done and the dent on the car was not repaired. I spoke to the manager after the salesman kept on ignoring me and he, Willem Senekal arranged for the car to be collected and repaired. They returned the car and still could not provide evidence that he service was done, the spare key was still not there and the dent on the door was still not fixed. Willem promised that he would deliver and arrange with Linsay Saker East Rand Mall to code the key for me but up to today, 3 months later I still do not have the key.I initially said the door is not that bad, but after this BAD service I expect them to repair the vehicle as promised. I also need evidence that the service was done as well as the spare key as promised.