For sale: 26" KETTLER bike from Germany. City bike, ultra light, aluminum frame. Planetary gear, 7 speeds, dynamo in the hub, LED lights. Perfect condition. Price reduced.
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.
