FlyerTalk Evangelist
Join Date: Nov 2000
Location: Nashville -Past DL Plat, FO, WN-CP, various hotel programs
Programs: DL-MM, AA, SW w/companion,HiltonDiamond, Hyatt PLat, IHF Plat, Miles and Points Seeker
Posts: 11,073
Kind of an open question. How can they prove you did not take that flight? Maybe, their system just lost the flight. In fact, if they ever called me on it, I would turn it around and ask for my miles.