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.
Selling: 5-liter saucepan in excellent condition (used a few times) Pancake pan in excellent condition (used a few times) Baking dish (new, unused) I'll give it all for 3000 dinars (can be in rubles)