Locked in 2FA reset loop on primary account — phone out of service & chat unable to assist

(Note to Adobe Staff: I am posting from a secondary/free account because I am completely locked out of my main paid account.)

Hi Adobe Support Team,

I am completely locked out of my primary paid Adobe account and am stuck in an authentication loop.
Here is what is happening:

• When I sign in, Adobe forces a mandatory password reset.
• Upon attempting the password reset, the system requires a secondary 2FA verification step sent via SMS.
• The phone number on my account is no longer in service, and my Adobe Access App is signed out, so I cannot receive the verification code.
• I tried contacting live chat support, but the agent informed me they do not have backend administrative access to update 2FA settings and suggested I cancel my plan and purchase a new subscription under a new email address.

I do not want to cancel my plan or create a new account, as I need to keep my subscription history, cloud documents, and assets intact on my main email.

Could an Adobe Staff Member please initiate a secure private message with me so I can verify my identity (via billing address, invoice numbers, or card details) and have my security phone number updated on the backend?

Thank you!