The D-U-N-S Number is a unique nine-digit number that identifies business entities on a location-specific basis. Assigned and maintained by Dun & Bradstreet (D&B), the D-U-N-S Number is widely used as a standard business identifier.
The Apple Developer Program is for individuals and organizations developing apps for distribution on the App Store, the Mac App Store, and outside of the Mac App Store with Developer ID. Resources for Safari extensions are also included
Grant Sandbox Commerce Admin Access
Allow firstname.lastname@example.org admin access
That gives us access to your developer account to submit a build for review on your behalf. All that's left from there is for Apple to review and approve it.
Per Apple: On average, 50% of apps are reviewed in 24 hours and over 90% are reviewed in 48 hours.
Once Apple gives their approval, you're all set!