I saw a google ad in response to a camera lens I sought. Site had a US contact, which I later learned had a disconnected phone number.
Product never arrived, no tracking info, nothing. I reported fraud to Paypal. They got a tracking number back from the vendor and closed my complaint without refund. I looked at the tracking info, which showed someone shipped something to somewhere in my zip code two weeks before I placed an order! They seem to search for a plausible tracking number on USPS and give that to Paypal, which doesn't look closely. No luck yet trying to appeal with Paypal. Nobody in charge seems to be working. Filing a chargeback with Visa.