I did not know this, just to clarify, If i get a single entry tourist visa, I can go to immigration and get a re-entry permit therefore keeping the tourist visa,
KL and hong Kong dont help south africans. Singapore is notoriously dufficult, so you would need all your papers correct. For easy options Vientiane Laos is your best bet.
So moral of the story is to have all documents ready but wont neccesarily need them. What is your country of origin, I just want to check if there is differences.