PhoneReputation Block / Error Code 399287 on Student Tenant Account

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Hi adam elburro

First, I would like to clarify that we are not Microsoft support, and this is a user-to-user support forum. Moderators and contributors, including external Microsoft employees, do not have backend access and cannot directly intervene in Microsoft products or features. Our role is limited to providing technical guidance and best practice recommendations based on reported issues, requests, or ideas. 

That said, if you would like your situation to be reviewed directly by the Microsoft Support team, I recommend contacting them through the following resource: Contact Microsoft customer support | Microsoft Support 

Important note: You may first interact with an AI assistant before being connected to a human agent. Please answer the questions carefully to ensure you're routed correctly. Having your information ready will help speed up the process. 

Alternatively, you can set up a Microsoft 365 Business Basic trial, which gives you the ability to submit a support ticket directly through the Microsoft Admin Center   

Step 1: Create a trial business account: Go to Microsoft 365 Business Plans and Pricing and click Try for free to set up a temporary Microsoft 365 tenant with a trial license.    

Step 2: Use this new account to sign in to the Microsoft 365 Admin Center and submit a support request.

Step 3: Click Help & Support     

Note: This method doesn't require you to use your new account for your business. Instead, it allows you to create a temporary global administrator account so you can submit a support request. The trial account is free for one month. Be sure to cancel it after submitting your support request to avoid any automatic renewals or charges from Microsoft.  You may follow this guide for instructions: Cancel your Microsoft business subscription in the Microsoft 365 admin center | Microsoft Learn

I sincerely hope this information provides helpful direction and additional insight. 

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