The airlines these days have so many terms and conditions and excuses to screw people over, that even if you believed you did everything right, you could still be out of luck. I have known many people experienced being screwed over by the airlines.
I travel buy car, bus, train, and boat, but the only time I've ever flown is because someone gifted me a ticket. It's economic scene and responsibly. Only a fool would be OK with being told you need to buy another ticket.
