Can I use a PO to buy copies through PQDT?

My institution requires me to use a purchase order for buying dissertations. Can I use a purchase order to buy copies through PQDT?

Yes, if you are a returning customer with an account in good standing, you will have the option to pay using a purchase order. However, if you are a new customer to ProQuest or have a credit hold on your account, you will not have the option to be billed.