All.
I have several questions regarding upgrade and op-up. Thanks in advance.
1) For Op-up, what is the priority with mix of MPO elite and OW elite? I remember long time ago there was a post regarding this, but I can not find it.
2) If there are several persons having the same tier but not enough to upgrade all, how to determine the priority? The BN number? Does it matter about the fare purchased or the time of ticket purchased?
3) For the normal Asiamiles upgrade, is it the same priority as op-up?
4) What is the normal way to request the Asiamiles upgrade? Do it in Asiamiles.com? Call AM? Or do it in the airport? Does it matter about the time of request upgrade?

Thank you all..