Payment Options

Credit Cards

We accept Visa, MasterCard, American Express and Discover directly through our secure web server. For additonal security, we do not store any customer credit card numbers on our server.

When completing the order form, make sure the name and address you enter in the Billing Information section is the same as what your credit card company has on record for you. If you're not sure, look on a copy of your credit card bill. If this information doesn't match, your order will not be approved.

Purchase Orders

We also accept purchase orders from US schools and US government agencies only. We need an actual copy of the purchase order which you can mail or fax to us.