I suggest contacting the caster and asking for one that is worth what you paid.
I've never had a caster that didn't at least try to fix a problem, but I've also never had someone send me one that obviously never should have been sent to a customer.
You might even want to start your message with "the guys on my forum sad..." so that they know that you've got an audience.
If you don't get satisfaction, make sure you let us know who the offender is.