Cash is the backup, not the plan

Mobile payment covers daily life, and a station window is the backup when a foreign card will not bind.

Shops, metros, and small restaurants expect a wallet code. Budget the trip as if the app works, because that is the normal day.

Still take cash. The government Q&A on train tickets says a station window can take a foreign bank card, cash, or a mobile wallet. Cash covers the hour when the app is the thing that failed.

Related pageThe guide this note sits next to