[pianopisser]

Here is some more info about refunds (taken from hardfest.com):

We are offering refunds to all concertgoers.

Ticketmaster Online & Phone Sales:
Beginning Monday, August 10th at 10 am, if you purchased your tickets through ticketmaster.com or a Ticketmaster phone center, the credit card you used to purchase the tickets will automatically be credited. If you purchased your ticket through a Ticketmaster outlet, you will need to bring your ticket to the point of purchase to obtain a refund.

Groovetickets Sales:
If you purchased your tickets online through Groovetickets.com, a refund for the total purchase price of your order will be automatically applied to the credit card you used. Please allow up to five business days for the credit to appear on your banking statement.

Retail Stores / Venue Box Office:
(Includes: Acrylick, Blends, Brat, Dita, DJ Culture, Dr Freeclouds, Electric Chair, Grooveriders, GCS, Headstone, Lallure, Mileage, Music Revolution, One World, Poobah, Turntable Lab, Store 13, and Xlarge)
If you purchased your tickets through any of our retail stores, or from the venue box office, you may obtain a refund by mailing your ticket(s) to:

The Forum
3900 West Manchester Blvd
Inglewood, CA 90305
Attn: Hard Refund Department

Please include the mailing address where you would like the refund check mailed to as well as an e-mail address. Include the payee's full name for check payment or full credit card information. Please allow up to 30 days for your refund to be processed.