When you need to get divorced in South Africa and know that your spouse is somewhere in South Africa, but you do not know where exactly your spouse is, you can bring an application for Substituted Service. In this application, you must ask the Court for permission to serve the divorce summons in a specific way instead of personal service.
Read more: https://www.martinvermaak.co.za/edictal-citation-and-substituted-service-how-to-divorce-a-missing-spouse/