If u bought it at a high court auction, u will get what is called a cert of sale once full payment is made. The prop will be transferred to u once the cert of sale is registered at the land office. Does not matter if the prop has caveats on it. A court cert or sale overrides the caveats

If u bought it at a private auction, that means the prop does not have an individual title, ie still under master title. The sale is complete once the assignment is perfected. Caveats do not really affect a prop under master title.

Your lawyer shd have been able to explain this to you