Personal-account Windows publisher can't associate an Entra tenant, so Store submission API and support are both unreachable

Publisher: Natchland. Products: MC Server Manager (9MZR0G9MV20D) and MC Server Manager Lite (9N16SM8CDV4K), both published and live.

My Partner Center account was created with a personal Microsoft account. I want to use the Microsoft Store submission API, which needs an Entra app registration associated with the Partner Center account. Everything on that path refuses a personal account:

1. Account settings > Tenants > "Associate Microsoft Entra ID with your Partner Center account" only accepts work credentials, and this account has none.
2. "Create a new Microsoft Entra ID tenant" from Partner Center does not complete for this account, and creating one at entra.microsoft.com with the same sign-in is refused as a personal account. The custom-domain route (verifying mcservermanager.com in a new tenant) also stopped working for personal accounts in mid 2026.
3. The Partner AI Assistant answers "AI assistant does not offer support for users with Microsoft Accounts currently" and points at Dev Center Support.
4. Dev Center Support refuses to open a ticket for this sign-in, saying there is no developer account, even though the account owns two live Store products.

So there is no supported way for a personal-account publisher to reach the API and no supported way to ask about it.

What I'm asking for, in order of preference:

• Associate an Entra tenant with publisher Natchland for me, or lift whatever flag stops this account creating one. I own mcservermanager.com and can add any DNS record you need for verification.
• Or tell me the supported route for a personal-account publisher to get submission API access without creating a second publisher account, since the two listings, their reviews and their ratings have to stay on this one.

A working support ticket route for this account type would help as much as the answer.