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.
Asus VA279 monitor. 27 inches. IPS matrix, easy on the eyes, wide viewing angle. Set Monitor + power cable + box. 80 euros or dinar equivalent. Rotkvarija