Lumo Play does not accept purchase orders, checks, or payment plans, sorry!
Our online payment system is intrinsically connected to each unique Lumo Play account (similar to when you purchase an app on the iTunes store or Google app market). Adding licenses and games manually for sales made by purchase order would add to the cost of labor significantly, which means we'd have to charge you a lot more for your software.
Usually, companies who prefer to pay with a purchase order are doing so for tax record purposes - if this is the case for your company, we're happy to provide our W-8Ben-e, which is the exemption form showing that as a Canadian company, we don't charge or remit USA taxes.
You can also download pdf invoices for all your purchases on this page of your Lumo Play user account: