Wirelessly posted (BlackBerry9630/5.0.0.591 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)
Also worth noting that it is different inventory for upgrades with UA points v CO points right now. If you want to use UA points you need *A upgrade inventory which is regular award seats.
And if you want B/M-up inventory that's ZE which is pretty similar to Z and that can be tracked other places as well.