Billing details for the Print & Audio, and Packaging are handled via billing.digimarc.com.
Direct payments also appear in billing.digimarc.com, under the direct payments tab.
At this time, Digimarc for Digital Images billing is not handled through billing.digimarc.com.
If you have never received a bill from Digimarc, you will not see any invoices or activity in billing.digimarc.com