How To Write A South African Postal Address . Well its about the postal code and a postal code (known in various countries as a post code , postcode, or zip code) is a series of letters and/or digits appended to a postal address for the purpose of sorting. Qpzm postal codes gauteng suburb of the day: What is an address in South Africa? from www.scielo.org.za In nearly every country, the address format differs. Write the address in chinese. In order to reach out to these municipalities and to increase the awareness of address data and its standardisation, a workshop is planned for march 2008 in johannesburg in