Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
Nintendo Switch case. Received as a gift, has been on the shelf for a few months. Holds the Switch itself, the dock, wires, cartridges in boxes, the joy-con grip, and, apparently, the pro-controller.