Service Incompetence, how to loose a future client

I made the final payment on my vehicle in November 2020, After multiple attempts to obtain the vehicle registration documents I have resorted to Hello Peter. Mails although acknowledged go into a black hole, never any response or feedback, the only feedback I received was we are not able to confirm your email address so we stopped the process. I intended to travel across the border with the vehicle but without documents it is not possible. Almost a year later I have not had any success, trying to phone TFS is a useless idea, as phones are never ever answered. If TFS really had their clients best interests at heart a simple phone call or responding to an email would make all the difference.