Originally Posted by cur
Yeah, sue for false advertisment. Great idea, get a high-power lawyer and then dress up 15 guys in suits and go to the airport check-in counter and tell them that they're sued.
Or, submit your reciept and ask to be reimbursed for the difference.
What's with Americans threatening to sue? There are at least 5 active threads where the individual who submitted the thread either threatened to sue if they didn't ask the forum they should sue

Not all of us are ridiculously litigious. Believe it or not, quite a few of us still possess the intellectual capacity to commit to common sense in spite of the attractive pull of stupidity.
EDIT: Note that the OP is apparently NOT American, however I think the comments apply broadly.