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.
Dear [Client's Name], I hope this message finds you well. I am writing to propose a partnership that focuses on supplying the highest quality cocoa beans from Nigeria, tailored to meet your business needs. As a supplier, I am committed to providing cocoa beans that adhere to the highest standards of quality. Our beans are sourced from reputable farms that pr...