Locked out of tenant for 4+ weeks – Identity Protection block, no resolution

I’ve been completely locked out of a Microsoft 365 / Azure tenant for over 4 weeks due to a Microsoft Entra ID (Azure AD) Identity Protection policy misconfiguration.

Only a break-glass account can sign in, but it does not have sufficient permissions to reverse the policy or assign roles.

I have already contacted Microsoft 365 Data Protection Team via a support ticket, but there has been no progress or resolution.

At this point, I need clear guidance on:

• How to escalate this type of lockout so that a Global Admin account can be restored, or
• If recovery is not possible, how to request tenant deletion to stop ongoing billing.

Any advice from Microsoft engineers or those who have successfully escalated similar cases would be greatly appreciated.