I believe the official distributor is/was TI Distribution.
http://tidistribution.co.za/brands-2/
Looking at their website they no longer mention Strymon, so perhaps that relationship is no longer ongoing.
You can try contacting Matthew Eales, who has been most helpful in my past experiences.
matthew@tidistribution.co.za
If they were the agent previously (I am pretty certain that they were, but I could be wrong) then they could possibly have some old stock available (They did with the Wyres strings, but I bought all of those ?).