http://en.wikipedia.org/wiki/Centurion_Card

http://www.askmrcreditcard.com/credi...centurioncard/
I have to say that a person in HKG with a Centurion card who has seemingly problems to maintain the mileage and no apparent posts on any travel network like this sounds strange. Given the card features revolve around a) snobbery b) travel related advantages when paid for via the card it seems to be the card for a traveller. A cynic would ask whether the OP is a member of Amex looking for ideas or CX looking for loopholes to close so they can target and charge more. Look forward to lazsee proving me wrong.