My Authenticator app logged out of my account and now account is locked

Question

Hi I have recently added my custom domain to my microsoft store account.

but I have somehow now logged out of all accounts including the MSFT authenticator app.

so now when I log in I get the prompt to authenticate via App but the app gives me the following Error.

sign-in-error

error finding an account to complete

multi-factor authentication.

you may need to add the account again.

But if I try to add the account I need the QR code generated when you first create the account.

and is I try to login the authenticator app need the code so its just stuck in a loop.

I don't have any other form of MFA so the app has now locked me out of everything and I'm the only Admin.

I have spoke to support and no one can help stating the data team need to help.

I've just been on hold for 5 days to no luck. my work is now at a standstill as I've lost access to everything.

if I cant fix this for tomorrow AM ill have no choice but to abandon the account cancel my DD and start a new account fresh as my company cannot run with out the system running.

no idea what to do as i just cant get anyone who can help and I'm worried about the things I'm reading about the Microsoft Data protection team not responding for weeks/months.

this really is a nightmare.

any help out there.........