Hello
It sounds like your account might have been hacked and taken over.
I am so sorry this happened. Please fill out the Recover My Account form: https://aka.ms/recovermyaccount
Instruction for each field can be found here: https://support.microsoft.com/accounts-billing/manage/guidance-notes-for-the-microsoft-account-recovery-form
Contact email: Use an email address you currently have access to. This is where Microsoft can contact you regarding your request.
Response time: A response may take around 5 business days, although this is not guaranteed. Please save this to your safe sender: [email protected]
Date of birth: Pay close attention to the required date format. This is an area where users sometimes make mistakes because it is asking for US date format.
Account information: Provide as much accurate information as possible. If you genuinely don't know an answer, it is better to leave it blank if allowed rather than guess.
Device and location: If possible, complete the form using a computer, Wi-Fi network, and location you normally use to access your account. This may help Microsoft recognize your usual sign-in activity.
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Also, to avoid any misunderstanding or false expectations, I'm an independent community user. I can help you navigate and make sure you are using the right tool/resources, but I don't have access to your account and cannot manually recover or unblock it. The final decision is made by the account security review team, so I cannot guarantee the outcome.
Microsoft Support also cannot bypass the required account verification or reinstatement process.
Lastly, please don't share any passwords, verification codes, or other private account information here, as this is a public forum.