Originally Posted by
Fiumicino
Do you get this problem only on itineraries with more than 4 segments (= 2 ticket numbers needed)? I think that has something to do with this, in my case I am unable to apply E-500 if my ticket has been issued on more than one ticket number (even sequentials).
It was a 4 segment, same day return itin. The last two segments (the "Return") were the ones that I had confirmed upgrades on.