Locked Out of Azure Account While Billing Continues, Need Pre-Login Support or Recovery Path

[u/woodiwoodpecker]

I have an old Azure subscription tied to my personal Microsoft account, and Azure is still charging my credit card for running resources, but I’m locked out of the Azure portal and can’t shut anything down. About six months ago Microsoft Authenticator worked for this account, but after reinstalling the app to connect my phone to my employer account, Azure sign-in now asks for a 6-digit Authenticator code or app approval while the personal account entry I see in Authenticator generates 8 digit one time password and doesn’t let me complete login. I still receive Azure invoices by email and have access to my phone, email, and credit card, but every Azure support path I’ve found seems to send me back to a login I can’t complete, leaving me unable to stop billing, cancel the subscription, or recover access.

Questions:

1. Is there any Azure or billing support page where I can open a case before login for a locked Azure account that is still billing me?
2. Is there any Azure-specific account recovery path for a personal Microsoft account tied to an Azure subscription, separate from the normal Microsoft Live account recovery flow that I have access to with no issue?
3. Is there any billing support channel that does not require login, such as a phone number, callback, chat, or pre-login support form, that can help stop Azure charges or cancel the subscription?