My small cheese & wine business inadvertently, but voluntarily paid $9300 worth of invoices over a 13-month period for wine that was neither ordered, nor delivered. The wine "vendor" replied to a letter we wrote to him stating that the company is no longer in business, & he is now based in Hong Kong. However, we have two apparently active addresses & 'phone numbers for him in Southern California. What kind of recourse do we have? Where do we begin?