Visitors to South Africa will have to register with a local cellular service provider before that can activate international roaming on their cellular phones. 

According to a report in Business Day, the move is part of the Regulation of Interception of Communication Amendment (Rica) bill being discussed by the justice committee before Parliament.
Part of the Rica bill makes it obligatory for cellular service providers to maintain personal records of all their users, as well as records of usage.
In order to comply, visitors will have to supply their names, passport numbers and addresses before being able to access roaming from a local provider.