[The_Judge]

You've posted this same experience in 2 different places within 15 minutes of each other. Good exposure that way, I guess.

Anyway, sorry to hear you lost your gate-checked bag but glad you got it back. Very odd that United would deliver it when nothing you've indicated shows United was on your itinerary. Very nice of them to do that since you weren't even their customer. I'd fly them from now on.

Now we don't really need to go into why you were bumped but I am curious. In the other post you say involuntarily bumped. This post you don't mention either way. It's really a non-issue as you don't seem too upset about it. You were given vouchers.

You say you received a phone call saying your vouchers are no longer valid. This tells me, along with your other post about involuntarily bumped that you were late to your flight and so late in fact that you are not entitled to compensation. I think the agent initially made an error giving you vouchers then compounded the error by calling you and saying they are now void. If the agent gave them initially, they should have not voided them but to be honest if the situation is as I described you should have never gotten them to begin with.

You talked to a different supvr later who had no knowledge of the happenings before and I'd bet you gave him/her only limited info so she issued new vouchers.

Not being able to use them again tells me the same thing might have happened. She found out about you being late and voided them again.

Just some speculation on my part but it's all I can do with the very limited info you are giving.