Help Needed: Unidentified Azure charges, unable to create a billing support ticket without an account

Hello everyone,

Our organization is receiving recurring charges on our corporate payment method from "MSFT AZURE, IE" and "DUBLIN 2, IE." After an internal review, we are unable to identify who set up this service or which Microsoft account/tenant is associated with these charges.

We are currently stuck trying to reach support and could use some guidance on how to proceed:

• Email Support: We sent an email with the invoice details to [email protected]. They closed the ticket and directed us to the Azure Billing and Subscription Management Support team.
• Portal Support: We tried to create a support case in the Azure portal, but because we don't know the login credentials for the account generating the charges, we are stuck in a loop of FAQs and cannot actually submit a ticket.

Since we cannot log into the specific Azure environment to open a standard billing ticket, how can we get in touch with the Azure Billing team? Is there a direct phone number, an alternative portal for unauthenticated billing support, or can a Microsoft moderator here help escalate this issue?

Thank you in advance for any direction you can provide!