Ciena accepts major credit cards, along with a PO, and training credits. 

To receive immediate access to paid content, please use a credit card. 

Another option is to use a PO or training credit.  To do so, during the purchase process, please enter the PO number or training credits information for your organization.  If you do not know it, please go ahead and purchase the training with the "Other" form of payment. 

Your purchase will remain in pending until it is verified by the Ciena team.  You will be notified once it is verified.