It seems like the Amazon reps weren't paying attention to the detail, or the seller was also supplying fraudulent evidence of delivery. This blog post will likely get it resolved for the buyer, though it shouldn't have to be this way.
I'm more sympathetic to Amazon here than most. Scams are hard to detect. They set up a shipping confirmation process that's worked fine for them for almost two decades now. It has a hole (it only checks the town and has no closed loop to verify that the shipper shipped to the right address in that town), but none of the existing employees actually know that it has a hole. They get a report about a missing shipment, c…
How about checking the actual address and checking the weight of the item on the package.