Hold on everyone!!
It may be that they did this if the OP spent a good deal of that $$$ coordinating events at Hiltons!!
My wife earned Silver status just by coordinating 2 events at a Marriott property within a year, and they promised her much more if she would do more.
So, perhaps Hiltons in conjunction with AMEX is offering something similar??
In any event, congrats to you OP on the Diamond status.
