Order report showing no orders....customer VAT number required for invoice?

I have registered for the vat calculation service which will take effect in a few days. In the meantime I have had a business customer order that requires me to upload a VAT invoice within a day.

I followed the instructions to edit the columns on the order report settings (to show billing name, address, customer vat no etc) but when I produce a report say for the last day or two the result shows ‘no orders’ so there is no order report to download to obtain the require information.

As I understand it my invoice has to show the customers’ vat number…is that correct?