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.
I will sell dresses new and used in good condition: 1. Beige - oversize, new, material linen/cotton - 2000 Din 2. Striped (khaki) “Exterra”, 100% viscose, size S/M - 2000 Din 3. Dark blue “HenryCotton’s”, size 42 (It) (S/M), material - cotton/nylon/elastane - 2000 Din 4. Khaki “EMKA” - size 46 (M), linen/viscose - 2000 Din Center, Riblja Pijaca