Problem with admin sandbox account under Developer E5 subscription

Question

Hi,

I have MS VS Professional which provides Developer E5 as a benefit when you create Microsoft 365 Developer account.

Sandbox is generated out of the box with admin user and some other fictitious ones:

Right after registration I was able to setup 2FA for administrator - and also login to office.com to download desktop products (admin.microsoft.com portal was also available).

Now I can't login using "Go to subscription" link, getting "More information required: Your organization needs more information to keep your account secure".

Clicking '"Next" and seeing: "You cannot access this right now: Your sign-in was successful but does not meet the criteria to access this resource. For example, you might be signing in from a browser, app, or location that is restricted by your admin."

Error Code: 53003

1. Resetting password didn't help
2. I already deleted and immediately created new MS 365 Dev, didn't help: sandbox domain (tenancy) remains the same
3. I already talked to 5 (!) different people on the phone support and ticket was bounced from one place to another:

• Visual Studio subscription portal support
• Office.com support
• Data Protection support (today they even closed the ticket TrackingID#2404230040013771, lol)
• General phone support
• Developer subscription support

Eventually I was suggested to "ask a question" here, no idea how community gonna help me.

I stressed out a couple of times already like "could you guys just create new sandbox tenancy for me please?"

This case already took a couple of weeks...