Also had an issue the last few years, not even with vehicle ownership - just with having another guy driving around with a clone of my numberplate.
4 years later and we still get the occasional fine for that vehicle not having a valid license disk (which of course they won't). What's infuriating is that about 8 of the fines have been issued in the smallish town of Atlantis, and the same traffic cops have issued the fines for years. If you see the same car not having a valid disk for 4 years, wouldn't you think something is up?
Anyhow - we have to go to the traffic department every time to get the fines squashed - or pay to have our license plate changed.