Originally Posted by
garykung
My concern is if it is not a hassle to do something like this, I will still do it.
Remember - GA can name a lot of excuses not to let you board the flight.
What's the harm anyway? To me, I will rather make sure that I can take the flight.
This is the exact reason why I will do an extra step (although in this case, it does not involve with CX):
http://www.flyertalk.com/forum/budge...ht-friend.html
As OP is boarding in Vietnam and the Vietnam office differs in opinion, I agree with you that it is better to be safe and get the cc verified.
Guy Betsy did suggest OP to ask CX to annotate. If not convenient to show the cc in person, that would be an alternate approach.