There's a youtuber/streamer I sometimes watch, an American living in Ukraine until the war. She fled to Portugal when the invasion started, and paid for an item with her credit card enroute. This triggered an automated lockout from the card suddenly being used abroad.

The bank's bureaucracy advised her to unlock it she needed to go in person to her home branch in Ukraine (which has a decent chance of being a pile of rubble given her neighbourhood was hit by shelling in the time after she left).