Has anyone ever received a call from "Amazon customer service", asking you to confirm an order you never made?

I got one today! The guy said, "If you didn't place the order, you need to give us the name of your bank, so we can complete the process of cancelling it". I asked for his number, so I could call him back, after about three minutes of him refusing to give it to me, he finally did. It was actually an in state area code but when I called it, the message said, "This is a vacant phone number". Are these calls common? Does Amazon even call customer's?