Good question. There had been no schedule changes, and even when I checked in online, it said, "Upgrade Requested". She noted this too, saying I should have been on the list.

My radar was already up, because on the outbound, a guy I knew had been upgraded. Saw him in ATL and he told me he was only a Silver.

I'll live, but I certainly want to make sure it doesnt happen again!

(And now I'm in Amex Reserve Companion Cert upgrade hell. Just got off the phone with DL. The woman essentially told me that it isn't happening. I've tried a ton of combos to use it into NYC, and each time, it says "Certificate Not Eligible With Selected Cabin." HUH? There is no cabin selection. It just asks date and cities. Talked to online support and the woman said, the computer just defaults to that when we're over half full. ... delta?)