Shpock

Hi, I was speaking to a seller regarding a product he was selling, came to an agreement to purchase an item, then purchased the item & paid for the item via bank transfer (I have proof of this), the seller agreed to post the item out via special delivery the next day, I was about to message him for contact details etc to get in touch with him if needs be. however he has since deleted his user on Shpock & I have not received the item & no refund or whatsoever, the username of this user on Shpock was 'Tee. A'