Are their no small claims tribunals in the US? This refund would be over so quickly in Australia and no doubt the ACCC would be on their arse.
We barely do anything about monopolies here these these days, but at least false advertising and right to refunds are rock solid.
Also, those seat selection fees are crazy. International flights I've seen like $8, maybe $15 if you're getting really crazy.
Who in the world is paying $100 to select their seat?