Do not spend a customer's money before it's actually your money. It isn't your money until a sale is completed. As far as gold, one must either stock gold as inventory and create an obvious buffer to protect a customer's funds or one must get out of this crooked game. Anything else is disreputable by any measure.
THIS! Exactly my point. The common retail/commerce practice in the US (AND the law) says that you don't charge until you ship. PERIOD.
COINASCAM needs to return the full amount.