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.
Children's scooter, in perfect condition, used twice, bought new. 2800 dinars. New panties for a girl, only washed. 200 dinars. Women's pants in excellent condition. 300 dinars