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Old Mar 11, 2012, 1:22 pm
  #15  
xianrocker
 
Join Date: Apr 2010
Location: Tokyo, Japan
Programs: UA 1K, DL Plat, HHonors Gold, PC Platinum, Hyatt Platinum, Marriott Silver
Posts: 201
Originally Posted by sbm12
If there was upgrade inventory then it would clear immediately. But the inventory you need is for R or RN (I bolded them above) and that is at nil right now so you're waitlisted.
What is the difference between R and RN? I noticed several other fare buckets also have N's following the fare class identifier
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