If you have the option to surrender your SA citizenship, then they can't touch you.
For me and a lot of people, we have to deal with it for 5-6 years until we can say goodbye to SARS.
As for not paying, uk/sa have a tax treaty and share info so you when you do apply for citizenship, you want...
Problem is, you still have to pay tax to SA if you earn over 1.2mil and with the rand being what it is, that's not very difficult to achieve.
Also, uk is actually much nicer than one expects.
South Africa is in no way as special as you think, you can get all this in somewhere like Spain without the massive amounts of violent crime and murders.
Edit: Also, you can't. Many times i've forgotten to take the bikes off the bike rack while my car is parked on the street overnight. Yes...
FreeTrade (UK Only) has simply moved GME from the free shares to only available to paying customers (9.99 pounds per month).
Freetrade are totally independant and built their own trading engine, so they can do what they like.