Several high profile cases have made airlines look bad for bumping passengers off flights they paid for. However, there is another way you can be denied a seat you purchased and it caught a Marin County man off guard.
It's a policy few passengers know about and if you're not careful, you can find yourself stranded in a faraway place. In this case, an airline took away a passenger's ticket back home and wouldn't give his money back.
Watch the video player above to hear his full story.
7 On Your Side's Michael Finney warns about the risks of using payment apps
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