> I never want to use that airline again, and would happily chargeback.
The problem with that idea is that sometimes Airline X is the only game in town for certain destinations. I have an Airline X that screwed my then girlfriend now fiancee and I over rather badly last year, forcing us to fly a day later than planned, with knock on impacts on our plans/schedule.
Airline X are a bunch of unregenerate, dishonest scoundrels who I'd cheerfully feed into a running woodchipper but the strongest position I can realistically take is that, where a viable alternative to Airline X is available, even if it's a bit more inconvenient or expensive, I'll use that alternative.
However, sometimes a combination of scheduling, availability, outbound airport, destination, and other constraints make it either literally impossible or practically impossible to avoid using Airline X.
So a few months after the unpleasant occurrence last year I had to use them once again for a one way flight because they were the only viable option. It pained me to hand over the money, and it pained me even more to watch them single out somebody in the queue for reasons that are obscure to me and make their life extremely unpleasant even though, apparently, they'd paid for the bag they were trying to bring aboard.
Scumbags. But I still needed to get home. So I can't afford to get barred by them.