Originally Posted by phxcfi

Just tried to use my F9 miles to bring our daughter for a visit. Discovered account had been "zero'd" due to lack of activity (24 months). Went to the FF info pages, no mention anywhere. Gotcha!
I too found this out the hard way. My membership guide says 5 years, but the change to 2 years seems to be a mystery. No one can tell me when the change was made and how customers were notified. The website does list 2 years. I was persistent and was credited all the miles lost. Kudos to F9 for doing the right thing.