Centurion Card FAQ
Thanks so much for posting this!
I had heard that you can have your eligibility requirements and membership fee, either reduced or waived, if you have a banking relationship with American Express Private Bank. The amount that would be reduced or waived would depend on the assets held by the Private Bank.
Amex Private Bank is for individuals who are NOT either US citizens or residents and have at least $1 million in assets with the bank.