Hi - I applied for and received my refund (less fees) quite awhile ago. Here is copy of the email I received. You can try emailing them at firstname.lastname@example.org but as you can see from the email, there was a deadline to apply. Maybe you can resell them to someone wanting to go to the rescheduled Aldean show next week? Good luck
Dear Eric Church Fan,
If you would like to request a refund for the 5/20/11 Cincinnati, OH presale tickets, please respond with the following info:
First & Last Name:
# of Tickets:
Please respond to this email by 6/15/11. If you have not responded to this email with your request or received confirmation from another email you have sent, you will not be able to receive a refund after 6/15/11 and your tickets will be available for pick up at will call on the rescheduled date.
If you would like to keep your presale tickets, please disregard this email.