I have no first hand knowledge, but there are some news articles and forum posts on https://www.mybroadband.co.za/ https://www.mybroadband.co.za/ that will give

I have no first hand knowledge, but there are some news articles and forum posts on https://www.mybroadband.co.za/ https://www.mybroadband.co.za/ that will give you an indication of how StarLink is handling it. Surely international law can't force StarLink to detect where their terminals are. Or force StarLink to block their signals from leaking into neighbouring countries. They won't market or distribute their terminals in countries where it is illegal. So it's up to customs to seize terminals when they cross the borders or communications regulators to seize terminals after they came in. At this stage, I think StarLink is clamping down on roaming because they don't want to jeopardize their negotiations with the SA government.