Are there members local to him who have been screwed with for an extended period of time? He lists Glendale, CA as the hometown. I would suggest a small claims court. I'm not sure how representation of others would work, but at a minimum they could get their $900 back. If you can sue on behalf of others with proper documentation, you could max it out at $7500 (if he is selling them as an individual, $5000 if he is an LLC). IFFFFF he's selling them as an individual and not collecting California tax and paying income tax, that opens the game up.
If multiple locals can sue on behalf of others, it could be a full refund for everyone. If he fails to pay, you put a lien on his property. Seems extreme, but based on the actions he has done, he brought on himself. Either respond to e-mails and honor refunds or pay the price.
If multiple locals can sue on behalf of others, it could be a full refund for everyone. If he fails to pay, you put a lien on his property. Seems extreme, but based on the actions he has done, he brought on himself. Either respond to e-mails and honor refunds or pay the price.