FlyerTalk Forums - View Single Post - New Hilton Amex Offer Valid through 7/30/17 - $60 off $300 or more
Old May 23, 2017, 9:37 am
  #14  
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I've always thought it is because the AP charge comes through from a Hilton central booking office (or whatever you call it), whereas the promo is triggered by checkout charges from the property itself.
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