Volkswagen Kimberley

Since I purchased a vehicle on the 11 December 2019 at Master Cars in Kimberley. The car disc has expired and the 21 days has also expired. Meaning if a traffic offer can stop me and see the disc has expired on 31 December 2019 I will be receiving a fine. And I don't think Volkswagen will pay for that fine. The salesperson said he is waiting for documents to be couriered to him. How long does all the process take for me to get a new number plate and license disc? I cannot drive around freely even.