Similar thing happened to me with the Nova one. Was a little confusing. The process was apparently easier through the AMEX transfer page.
When you move abroad, take your card and credit history with you when transferring your American Express Card. Pack peace-of-mind as we aim to make the transfer process as quick and painless as possible.
www.americanexpress.com
When my friend did it and myself, we only had to use our passport numbers and that was it, we both were approved instantly.
But, not sure atm, since I don't have an AMEX in AUS.