Originally Posted by
DrunkCargo
I ruled out relying on this when I specifically looked up a flight for which I confirmed Z space by phone, but did not show in Business Saver inventory. The only reason I didn't take the inventory when I called was, United Mexico was closed so I couldn't be transfered after 1K desk confirmed Z space. To verify my findings, at least for this one CM segment, I checked the award inventory immediately before calling back to actually take the space. Cost me 80 Plus Points for two CM segments (horrible redemption value) but better used than lost.
Not sure if I did something wrong, Using the same technique I can find Saver inventory (I Class) on other CM flights. So perhaps Z is a superset of I?
That's incorrect -- I'd call back to get some PlusPoints redeposited. It's supposed to be 1 RPU for one directional upgrades with Copa -- so 20 PP per direction. However, you cannot mix between Copa and UA (it would be 40 if you did). But since you're 1K, you should qualify for CPU on the UA metal routes anyways.