Dear Mister Usabi,
first at all I need to say it is actually sad how people try to play internet police and than actually do more harm to the community than good. It seems you have a personal issue with Timeshareafrica.
1. Timeshareafrica never was intended to sell, trade or deal with timeshares.
2. Timeshareafrica was registered but didnt trade on GLBSE.
3. Timeshareafrica does not have to be registered with VOASA because they do not trade with timeshares.
4. If Timeshareafrica is doing business with Paytunia it is their personal matter and not the matter of Usabi.
As you stated in an email it says you are owner of several listings on GLBSE so I assume this was more an act of blackmailing than anything else in order to let your listings look good.
All the best and good luck with your listings on GLBSE!