If you're using a RPU (CR-1), your res. should show the segment(s) waitlisted or you should be confirmed in R, if it cleared. I'd trust that info over the mobile listing but I'd also call UA to verify, esp. since you applied an RPU; and especially if R availability is > than 0 and you haven't cleared.
That's not true, inside of 24 hours that waitlisted upgrade gets whacked.