Discount received, points not yet
I have received the discount for platinum card too, but the bonus award points are not yet in my FB account.
The creditcard fee is also paid within current creditcard statement.
So for me all is done, except the bonus points. I expect that to be added when they will add points for next statement in december.
I was told I would receive confirmation about the deal for discount and points for Amex FB platinum card. Never received anything. So hopefully that will not become an issue.