[Stone Mountain]

If your tickets are being delivered by mail, and you have not received them yet, when you do, mark "return to Sender" on the envelope and send it back. Then notify your credit card company that you never received the tickets, and have them remove the charge from your account. If you have already received the tickets by mail, you can do the same thing as long as you didn't have to sign for the tickets.

Note that this is still fraud...

[CA Conservative]

Well, you can always take the third option, and just have the credit card reverse the charges because they are no longer worth what you paid for them... It might be harder to justify, but maybe not.

If you purchased tickets before this happened and now don't want to attend, I don't think you should be penalized by the ticket vendor's no-return policy. If you get your money back and don't use the tickets, seems like no harm, no foul. The venue can resell the tickets (if anyone will buy them). I am loath to suggest anything questionable, but I have no problems with this.