Bump. I'm getting the runaround from AMEX and Hilton on this. AMEX confirms that I crossed the $20k threshold before December 31st, they say call Hilton. Hilton says it's not their fault and to call them back in mid-February since enough time hasn't passed.

So I've now lost out on a month of status; I've had two stays during that time where I've lost out on the bonus points and the nice amenities. Anyone know of someone who can straighten this out other than the traditional CSRs from either company?