Originally Posted by
sethb
Generally, yes, but it's always best to tell the agent that you want the largest amount anyone gets.
This is 100% correct. Even if you accepted a lower offer, all you have to do is ask the GA, and they will give you the maximum offer. I have never had an issue with this when volunteering a seat on any airline. As a side note, I always stay at the gate until it closes the door just in case the offer jumps up.