eBay

I recently completed two transactions and the buyer did not pay. When I contacted eBay support to ask a question they told me I was not verified. Does anyone know what that means? Also any tips when you think the person bidding on your items are fake...

I have had two transactions where the buyer did not pay and when I contacted eBay they told me I am not verified. Does anyone know what that means. I currently have two listings and do not trust the bids that are being made as it looks like the same ...