Selling AirPods 3. Used for about a year and a half. Everything is in perfect condition. Selling because I bought my wife new 4s with noise cancellation.
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.