If you can't receive the verification codes prior to your account being locked, you may try these steps:
- Avoid submitting multiple requests to phone numbers, since this could stop verification codes from being delivered.
- Suspicious traffic from your geographical location may cause delays in delivering verification codes. These uncommon issues usually resolve on their own after some time.
The temporary account block is fully automated as a security measure when the system detects an unusual login pattern, in order to prevent hacking incidents.
Please be advised that Microsoft Support will not be able to assist you with manual recovery, unblock, and escalation for this case, as stated in this article, that they are not permitted to send password resets, access, or even change any details on the account:
https://support.microsoft.com/account-billing/help-with-the-microsoft-account-recovery-form-b19c02d1-a782-dee6-93c3-dc8113b20c42
Best regards,
Darhyl