Originally Posted by
cepheid
This is incorrect and the agent with whom you spoke was absolutely wrong...
In other words, if the base fare drops, you should receive the difference between your original itinerary and a refared itinerary priced using the new (lower) base fare and any vouchers/e-certs applied to the original itinerary.
...
You should call back and, if the CSR balks again, ask him/her to look up the "Guaranteed airfare rule" in your fare rules... and to ask a supervisor if they require further clarification.
Wow, you were absolutely right -- and thanks for such quick advice. And what a difference an expert agent makes, when I just called back now to try this.
The credit voucher was issued in a few minutes, and the agent even knew to pull the correct mailing address out of my friend's passenger profile instead of my UA MP billing info (because the voucher is in his name now), and preserved the cleared upgrade on the itinerary! She was from the Honolulu call center, and I'm definitely sending in a message to show my appreciation.