You lent me your blue umbrella when my train stalled at Canal. We laughed about being stuck “underground forever.” I still have your umbrella—maybe you’d like it back (or coffee instead)?
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.