You planned ahead. You showed up early. You even skipped that overpriced airport breakfast sandwich because you wanted extra time to get through security. Then somehow, despite all your responsible adult behavior, you still watched your plane leave without you because the TSA line looked like a theme park ride designed by chaos itself. Now the airline is offering you a voucher instead of a refund, and suddenly your relaxing getaway has transformed into a customer-service survival game. Unfortunately, airlines usually don’t consider massive security lines their problem, even when half the airport seems trapped in them. That doesn’t mean you’re completely out of luck, though. Between airline policies, credit card protections, and a few strategic moves, you may still have a shot at getting more than a glorified coupon for future stress.