Originally Posted by 767-322ETOPS
I would try it again at the check-in desk at JFK. Maybe ask them for the status of your upgrade, act surprised when they tell you it was denied.
Sage advice - and I am confident you will get back on the upgrade list. Remember that on the day of departure, the waitlist goes by status then time that you get on the list. You'll be getting on it very early since you board in JFK.