It's over a year and I still don't have my car papers

I bought a car at Auction Nation in June 2020. I still have not received my car Natis papers. I have sent them emails and made numerous calls to them with no success at all. I even went to their Head Office and spoke to Cindy who told me that the papers were sent to their Centurion branch. Jaydian at the Centurion branch denies receiving those papers. No one is really prepared to help. Auction Nation's customer service is the worst ever!