ATM 'help' and card swapping
Johannesburg, Cape Town, DurbanVery commonA stranger offers help with a machine that has 'swallowed' your card, or a card is swapped during a staged jam. Card skimming devices are also common at standalone ATMs.
How to avoid it: Use ATMs inside bank branches or malls during the day, decline all help, and cancel the card immediately if it is retained.
Sources South African Banking Risk Information Centre r/southafrica safety threads