A note before you act: entry and transport policies can change. Recheck the official source relevant to your nationality and route before departure.
Set up before departure
Install your chosen payment apps, complete identity checks and add an international bank card while you still have reliable access to your home phone number.
Expect a few exceptions
Most everyday payments are straightforward, but card issuers may block an unfamiliar transaction. Tell your bank you are traveling and keep a second payment method available.