Invoices are sent by email on the first working day of each month for the preceding month, once any outstanding credits have been processed.
From the Invoice Reporting page you can view the status and print copies of your invoices.
To print copies of an invoice click on the View/Print/Pay link. This will display the selected invoice. Click the Print button for a "printer friendly" version of your invoice, and to print click the "Print" text link at the top of the page, or use your browser print function.