Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Sachiko Alfaro Miyaki,
Good day! Thank you for reaching out to Microsoft community.
I can understand how frustrating it must be to face challenges accessing your account. From what you've shared, it seems that you're unable to log into your account due to issues with your Microsoft Authenticator app, and you're not receiving any emails or text messages with codes.
Additionally, you're concerned about updating your credit card information to ensure your billing is handled properly.
Since you've already tried the steps from some users with other threads suggested without success, this issue may be related to your authentication methods, and further specialized assistance may be needed.
However, there is another specific channel for your mentioned concern where you will get some possible information for certain specific resources and platform from our related community members.
Microsoft has a dedicated Microsoft Authenticator community, where experts are available to address these types of issues. They can help you troubleshoot or restore access to your account more efficiently. I highly recommend visiting the following resource to seek additional help from the related community i.e., Ask a question - Microsoft Authenticator - Microsoft Q&A to get the detailed help from the experts.
For more information, you may also check this MS article: Microsoft Authenticator FAQs - Microsoft Support.
Apologies for redirecting you to different community as the members in the category posted focus on the users with out of the box concerns on Microsoft 365 and have limited knowledge on the Microsoft Authenticator; so, to get the fast and better assistance, we have redirected you in the correct path.
Appreciate your patience and understanding. Have a great day!!
Best Regards,
S M Nazmun Nur