Photo: Koursea EditorialCarry two cardsIssuer and merchant routing failures are not predictable.
Choose KRWDecline dynamic currency conversion when offered.
Keep a fallbackSmall cash and a transport card cover edge cases.
When a kiosk rejects the card
Try the staffed counter, use a second physical chip card, and select Korean won rather than your home currency. A card working at one merchant does not guarantee that every domestic payment gateway will accept it.
