RA's in SA are evil. I am locked in one too and if I try stop it I will lose a large chunk of it. The growth has been so far below my pension which is also in SA markets mostly it is pathetic. RA's were created to enrich all the individuals taking fees on the side out of it. Stay away from them and rather put money in a decent pension fund.
Pension funds aren’t much better. They are often seen as easy access piggy banks by company directors and politicians.
Unfortunately any large pot of cash is gonna attract imaginative ways of accessing them.
You can invest it yourself, but the risk is high you make mistakes and be worse off.