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Old Jun 18, 19, 2:50 pm
Join Date: Aug 2008
Location: SF Bay Area
Programs: UA GS, Hyatt Globalist, Virtuoso Travel Agent, Commercial Pilot
Posts: 1,862
Instant upgrade Dual inventory fares are available in all business/first class booking classes (except maybe J). It's pretty common to see them in P, Z, D, and C.

Having said that, you're entitled to be rebooked in the premium cabin. Some agents erroneously believe otherwise, and trying to convince them that they're wrong is usually an exercise in futility. Your best bet is to hang up and call back.

Last edited by Sykes; Jun 18, 19 at 4:37 pm Reason: They're not instant upgrade anymore, they're dual inventory.
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