Lanseria Flight Centre would appear, incongruously enough, to be located these days at FAGC (Grand Central) and not at FALA (Lanseria).
What Saffa pilot says is spot on the reference point.
I think you would find it next to impossible to get a South African work permit, even as a relatively experienced pilot.
If you can afford the luxury of both time and money then an initial licence in South Africa would be great fun to acquire but probably absolutely useless towards acquiring a subsequent EASA licence. In terms of difficulty, I believe that the SA written exams these days are no easier than any others and unless you want to love in SA, why would you want a licence there anyway in the long term.
If you haven't done so yet, perhaps a good way to start off things is with a Class 1 medical. No point in splashing the cash for some basic training only to be told, just before you're ready for solo for example, that you've got an eyesight problem.
Best of luck in your endeavours.