How to use Foreign Exchange function?

Steps of buying foreign currency:

1) Press "Cash-Out" below TNG balance
2) Choose "Other Currency" and enter the exchange amount (at least HKD 500 per transaction)
3) Select "Pick up Cash in Hong Kong" and collection store
4) Confirm exchange details and enter Transaction PIN or use Touch ID to submit

You have to present the QR code and collect the notes at the selected collection store within 3 days of purchase. To find the QR code, press the "My" icon at the landing page and choose "Cash Pick-up Code".