The invoice
Replace the bracketed fields as you fill it in: [your business name] and your contact line at the top, then invoice number, date, and due date. "Bill to" carries the client name and address. A table of description, quantity, unit price and total follows, then subtotal, VAT at 15% if you are registered, and the total due. Payment details close it: bank or mobile money.
The quotation
Quote number, date, and a validity date. "Prepared for" carries the client name. The same table of description, quantity, unit price and total, then subtotal, VAT at 15% if registered, and the total. One line closes it: this quotation is valid for [number] days from the date above.