Originally Posted by lking

I just ended a call with the diamond line about 15 minutes ago. I decided to apply some GUCs to a flight I have out of LAX on Thurs, Nov 24. I decided this late since it is the usual game: tons of C+ available but Delta not assigning them, and to add insult to injury, someone decided to place themself in the middle seat of my 777 row.

So I asked the same question you ask: what is the order of priority? She said "...since GUCs are only issued to diamonds, time of waitlisting the GUC is the first consideration. If the time is exactly the same as someone else, then the other items apply: amex reserve, fare class, etc. etc. I also asked what would happen if one was a diamond when they got the GUCs but are no longer a diamond. She said that did not matter.

As an aside, I have used a GUC out of LAX and had to go to the gate and it was a real mess, so I sympathize with you. That was the real reason I didn't want to use a GUC for my upcoming flight because to waitlist out of LAX was a bad memory. I think there are lots of funny things going on with some employees there. When I used my GUC there before, there was even a redcoat there who was absolutely awful. They said the diamond line is supposed to do those, blah, blah, blah.

Good luck and hope all turns out well for you.