Anibal Jose Baez
Ok, now I get it. I apologize. But instead of asking them for an invoice, why not ask them: Who the heck are you? Do we have a contract? Do you know that what you are trying to do its called FRAUD? BY WHICH AUTHORITY are you dealing with a matter pertaining exclusively to (name of your corporation). I COMMAND you to never contact (name of your corp) again, you have been warned. Pierre. CEO. Corporate seal. Nothing more, nothing less. Registered mail, via certificate of service. I hope this helps!