I understand how stressful it is to be unable to recover access to both of your email accounts, especially after already reaching out to support. I can see there is already a Q&A Assist answer in the thread. I’d like to add a few important clarifications for your situation:
First, please note that this is a user-to-user forum. As fellow users, we do not have access to Microsoft’s internal systems and cannot unlock accounts or bypass security processes.
Second, when two-step verification (2FA) is enabled on a Microsoft account, the recovery form becomes very limited in what it can do. If 2FA is active and you no longer have access to any of the registered verification options, the system will indicate that the recovery form cannot be used. In contrast, if two-step verification is not turned on for the account, the account recovery form remains the primary and valid method to attempt recovery, which is why the support agent advised you to proceed with that option.
That said, since you mentioned that you already contacted Microsoft Support and the agent advised you to use the recovery form, the only remaining option is to make sure the form is completed as accurately and thoroughly as possible. You may find it helpful to carefully review the official guidance here, which explains how the form is evaluated and how to improve your chances when submitting it: https://support.microsoft.com/en-us/account-billing/help-with-the-microsoft-account-recovery-form-b19c02d1-a782-dee6-93c3-dc8113b20c42
I hope this helps clarify the situation and sets the right expectations about what is and is not possible in this case.