There may be some overlap with me, not sure how far north my area goes
I'm doing the greater joburg area...
Greater JHB, that's seriously ambitious. As far as I can see, your area ends at the Bolders shopping centre, thats about central Midrand. I asked for Glen Austin and surrounds, and got the whole of northern Midrand up to central Centurion, Kyalami and Kempton park.