Why do I need a travel document? Can I just use my passport from my country?
Remember when you apply for refuge status in South Africa you are saying that you cannot return to your country because you fear for your life. If you travel on a passport from your country and you have a problem in a foreign country, they will deport you back to your country where you will face the problem that you fled from.
No. If you use the travel document to travel back to your country of origin, this will be interpreted to mean that you can be protected by your country and you could lose your refugee status.