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.
Selling an acoustic guitar in perfect condition - bought this year, new strings, full-size. Stand included. Selling for 100, urgently, due to departure. Great for beginners and experienced players. Liman. Write - there is little time.
For sale keyboard, Russian layout, mechanics. Works both wired and via whistle and Bluetooth. Everything is cleaned, the condition is like new. Everything that is included in the photo.
