Where an operator has agreed to bill your organisation monthly, you can book on a purchase order instead of paying per trip. The booking is held straight away and you receive a pro forma invoice. You then have 7 days to attach the PO; the operator checks it and the booking is confirmed.
Those bookings are gathered into one invoice per operator each month, sent to your organisation.
Paying now but need a PO number on the paperwork? Add it at checkout. It appears on the invoice as a reference and changes nothing else.
