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.
A mountain of cases for: iPhone 12/12 Pro, iPhone 13/14/15, iPad Air 11 - all models from 2020. All in excellent condition. Any for 500 dinars. Novi Sad, Center