Firstly, I just want to state how awful Azure support is. I tried registering this as a ticket, there are a plethora of categories none of which relate to what I want, and I'm told to purchase a support package, which I do, and then I STILL can't submit a ticket! It's an absolute joke and if this carries on into when I launch my product I will have to move to another cloud provider because this is unbearable.
Anyway, I can't access one of my Azure directories as it has a MFA enforced on it, and my MFA device has been wiped. Authenticating by phone number isn't available as an option, the only options are a notification via the Microsoft Authenticator app, or enter a code from that same app, neither of which are any use as I've lost the app's data.
The directory in question is an Azure AD B2C tenant, which acts as an authentication gateway for an app hosted in my main AD tenant. The main tenant I have no issues with, it has MFA enforced and I have been able to recover this via phone number, however I can't switch directories to manage the B2C tenant because I don't have the specific MFA codes for that tenant. The only thing that Microsoft's "help" pages suggest is to contact the organisation or system administrator. Well, that's me, and I can't fix it.
Any ideas? I'd love to get in touch with Microsoft themselves but it seems I'm chasing a unicorn...