[What it is] This document is created in your account when you generate details for making a payment with funds transfer. You can print the copy that's created in your account when you generate details for making a payment by funds transfer. Electronic version: Can be generated after clicking "Make a payment" button on Transaction history page. Hard copy: Not sent automatically. Request a stamped and signed pro forma invoice on the Transaction history page. To get there, click the gear icon and choose Billing. Note that postal delivery of the hard copy can take up to 10 business days. [0] 
Pro Forma Invoice