Please ensure that you pass on your passport information to Acacia prior to departure. Most countries in Africa require you to have at least 6 months validity past the date that you intend to return home.
You also need to ensure that you have one full clear page for each country that you are visiting and a double page spread for South Africa (two clear pages next to each other). Failure to adhere to these regulations may result in delays or refused entry at border posts.
Many contries in Africa do NOT recognise dual nationality / dual citizenship. As such you need to travel on an individual passport for the duration of your tour in Africa. It is not practical to leave one country on one passport and then enter the next on another passport.
If you are unsure regarding anything please contact your agent or Acacia