Unable to pass Employment Verifcation step in Partner Center

Hello everyone,

I am stuck at the Employment Verification step while trying to enroll in the Microsoft Partner Center.

I have already submitted the required documents, including the domain invoice and the assignment letter, but Microsoft responded with:

"Based on the information you have provided to date, we have determined that your organization does not currently meet the requirements to pass verification."

This leaves me very confused, as the reply does not explain what exactly is missing or what additional documents are required. I have carefully checked the documentation, but there is no clear guidance.

As a company focusing on IT security, this is extremely frustrating. We recently shifted from Linux to Windows development, and without a Microsoft Partner account we are unable to proceed with building kernel-level antivirus solutions for our users. This has a devastating impact on our business.

Could anyone please share their experience or advise on what specific documents or requirements Microsoft usually expects in order to pass Employment Verification? Any help would be greatly appreciated.

Thank you!