Incompetence level - Master

So, as I shockingly found out I have been paying for a car that does not have the correct RC1 documentation linked to it.

I contacted Wesbank and they sent me three different RC1 documents that is not mine. How can this be? This is without any explanation or apology. Its like it doesn't even matter! Meanwhile I want to try and settle my account but cant since the correct documentation does not exist! I have been sending emails and getting an automated response without reply. The replies I do get are one liners still with incorrect information and without apology. When I called all I was told was not to cross the border with the car as it could lead to problems.

I also received my statements with an incorrect registration number linked to my name. Was then told to send THEM my CORRECT registration number to link on THEIR system!

The level of incompetence is insane. Should it not be the responsibility of Wesbank to ensure that they have the correct details of their clients?

Meanwhile I don't drive the car as I am too afraid of consequences.

Can someone please explain what is going on and come up with a solution?!