And before you do flag, take the time to send them an email. Offer them face value, and appeal to their human side. It may be futile, but show them they can easily sell those tickets and recoup their money, while doing a darn good thing for their fellow man.
If you don't want to expose your email to them, you can use
http://www.spamgourmet.com to send your message. It's a cool little service, and once you create an account you can create a disposable account and use it to send a message to them, which masks your email, while still forwarding mail to you.