Well. I made a purchase on GOG in June 2019.I'm also from SA. On which platform are you?
I had a 15 GB update yesterday on XBox One X. Also, set your location to New Zealand and you will be able to play now. Confirmed working.
Have the physical copy pre-ordered from BTGames in June 2019 for the PS4. So picking that up tomorrow morning.
But I'm still wondering about the GOG launch. That's my priority. Not the console versions.