Can't fix a new car that's got manufacture problems

I'm writing this due to my patient ending and pain level came to a part where I can't handle it anymore. I've got a 2015 Polo GTI, booked it in at VW Strijdom Park for front suspension noise, gearbox shuddering and radio and USB issues on the 30th March. After a week I experienced the same issues and the car went back for the same as above, which they fixed yet again. On the 11th of April the car went back AGAIN for the shuddering and the radio/USB issue and since then I don't have a car. Every time I phone they are waiting for a part and when it arrives the part is incorrect, they did compensate me with a manual VIVO but keep in mind I've got orthopaedic problems in my both my feet therefore I bought a auto/DSG car and I live in Centurion driving from Randburg everyday. I even got VW SA involved cause it's ridiculous that my car can't be fix for almost 2 months now and still no joy.