Windows 10 Enterprise not activating

[swalkup1400]

Hoping someone can help me figure out where I am going wrong with activating my Windows 10 Enterprise license.

I have licenses for Microsoft 365 E3 (GCC-High version) and Windows 10 Enterprise E5 (Also GCCHIGH).  I am running an Azure AD joined computer with Windows 10 Pro (version 2004).  We are AAD-only, not hybrid.

From everything I am reading (https://docs.microsoft.com/en-us/windows/deployment/deploy-enterprise-licenses#win-10-activated-subs...), since I am AAD joined and have the M365 E3 license and E5 upgrade license assigned to me, it should be activating automatically.  When I check my activation status, it only shows my Windows 10 Pro license - not even a failed activation for the Enterprise license.  

Thanks for any advice, let me know if more info would be helpful.

[#2]

Did you find a solution for this? I too have this exact same problem. I have confirmed all the requirements are in place but there are no error messages in the Activation area and my Surface Pro 4 just stays on Pro with its existing OEM license.

[#3]

Currently, Subscription Activation is only available on commercial tenants and is currently not available on US GCC, GCC High, or DoD tenants.

https://docs.microsoft.com/en-us/windows/deployment/windows-10-subscription-activation