Banks that can exchange foreign currencies all have currency exchange signs.

Different banks have different exchange rates.

Banks that are not the big four: for example, Bank of Communications.

You can't change it after 4 pm.

This has something to do with their system.

The exchange of large denominations should be made in advance.

The Australian dollar denomination provided by ordinary banks is 100 Australian dollar.

For other denominations, please specify in advance when making an appointment.