Originally Posted by Chiangi
For diamonds, it's the revenue inventory that counts in securing upgrades. Since I became diamond, I haven't really used that upgrade inventory function on the web site.
But experiences of other diamonds suggests
undisclosed benefit includes immediate confirmation of awards/upgrades for diamond members. Of course, this is in addition to guranteed seat for Y+J of revenue ticket.
Perhaps trying requesting an award for Xmas, or Chinese New Year...