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.
We settle in Belgrade quickly! - Apartments from 200 euros per month, for a long or short term. - Conclusion of an agreement with the owner - at your request. We will select your option individually, taking into account all your subtle preferences. We will accompany you at every stage until the moment of check-in. - No prepayment. Are you ready to cooperate?...
