Who feels it knows it!
Centurion is the name of the card. The idea of a Black card was around long before the Centurion though.annual fee
Isn't the black the same thing as Centurion....and most of amex cards are charge cards that don't allow you to keep balances anyway..
You can keep a balance if you want to.
It just requires a phone call (a human being answers with little to no waiting time).