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.
A brand new house for sale in Garuga Entebbe road!!! * 4 bedroomd,4 bathrooms,sitted on 15 decimals plot size, private Milo land title on table, in a well organized estate. Price is ugx. 500m