I would expect some one to do a "background" check on me before sending downpayment. Possibly in same profession as the charterer... I certainly could provide reference vouching for me as reputable....CPA, Attorney, banker, realtor, medical staff office (I am a surgeon), etc.
My charter company (TMM) wants a contract signed by you and will have a booking number assigned to you.
If you are not feeling comfortable in process, investigate further. If person you are discussing with is resistant to providing references, then you really should look elsewhere.
