We buy cars bad service

Purchased a vehicle from we buy cars durban branch as a Amarok trendline 2.0TSI 2014 but when I check with a Vw dealer on the vw system it shows the vehicle is a 2013 model Amarok highline 2.0TSI. I have spoke to mandla and sales manager James at the durban branch with no joy or reply to my email concerns with regards to this and also faults picked up 2days later after purchase. After week with no response to my mails or calls from the durban branch I went to customer care spoken to Simphiwe 2 days later and now a week later still with no response. I have tried to contact the customer care and they keep me on hold or tell me he will call back but I am still left with no feedback with this issue. After speaking to so many different persons at the call center being so frustrated last person was Puseletso who i spoke to and she cannot do nting else but leave a message to call him and its a call center i must not lash out on her ,once again to help. Who do i contact to resolve this matter urgently?