Springs Nissan really failed me???

I bought my car from springs Nissan early November and I went to fetch it on the 23rd November 2018, the sales man was very friendly, I can not say the same about the other staff especially the management really I did not feel like I was welcomed but none the less I got my car and now I am struggling to get my car lisence as the temp one that they have app**** for me expired, I am all the way in the Eastern Cape, I have been calling them tirelessly and all I keep on getting are empty promises that the courier company will deliver it in the next 24hours ,I was charged R2500 for th whole process and yet I do not have the disc for my car. I am very unhappy and I will never ever do business with them. They have failed me as far as the service is concerned. I hope someone from them sees this and actually explains or gives me a way forward because I am really sick of their poor service.??????????