This card is a "stored value card". South Africa has been experimenting with totally moneyless slots. You put 100 rands or whatever you wish on the card at the counter, and then just put it in a machine to play. When you cash out, the new value is put back on the card, and you bring it back to the same counter to get your money. The slot machine will not take money in any form. There are typically no cards left in machines in these types of casinos, and the only way to get one is to put money on it, and yes, there is a minimum. And no, they won't give you your card back after you cash in. If you want a card for your collection, you have to load one with the minimum value, and essentially either lose it all, or else not even try and walk with it.