VPHAN,
Thank you for your assistance in attempting to resolve this issue.
Attempting to bypass the MS Remote Deskop Services Licensing IVR was unsuccessful regardless of what buttons were pressed or keywords used.
Using the Activation Portal call back feature resulted in 2 extensively lengthly periods on hold (despite the purpose of that being to skip the hold queue) of 2.75 Hours and 3.75 Hours respectively yesterday.
Attempting to go through the Microsoft 365 Support request was also unsuccessful, though the Technical Support Lead of the agent I initially spoke with was able to provide me the contact information for Microsoft Premier Support.
Microsoft Premier Support can be contacted at 1-800-936-3100, and they were able resolve the issue within ~15-20 minutes.