Originally Posted by
pdx1M
Interesting. I just checked a few of my reservations and on ones where upgrades don't make sense (award ticket) the upgrade choices aren't available whereas on ones where upgrades do make sense I see the buttons. Sounds like you have a somehow broken record - what a surprise. Bummer.
If you use any kind of e-cert, dollar off, or 20% off, the ticket won't show upgrade link.
Tickets were purchased after 3/3.
There are other cases people reported as well.
PM'ed UA Insider but received no response.