How long is the Octopus Card in Hong Kong Valid?
We were in Hong Kong in April 2016 and are planning to go back next year around the same time.
We had the superb Octopus Cards to travel around with.
Last time we took a cab (since we didn't have the Octopus).
This time we could use the Octopus Cards but don't know if these ones - they had a fair bit of credit on - will still work?
Might they need to be "re-enabled" by a member of staff - in which case is there a Customer Service desk at the Airport?