Record the time, route, and operator first, then contact the right desk on the same day while details are still clear.
Fast decision card
Use this before reading the full guide.
Do first
Write down where you last had the item, the time, and the transport operator.
Contact the station, airport, hotel, taxi app, or airline that handled the space. Use the nearest police box only when you do not know the operator or the item may have been stolen.
Avoid
Reporting only the city and not the exact line, station, or vehicle.
Waiting until the next day when the movement history is already vague. Contacting the wrong operator first and losing time.