Error when accessing non-profit hub

Hello,

our organization just received the notification that it is eligible for the Microsoft non-profit program.

When I tried to access the non-profit portal, I only get an error message. I tried to contact support and they stated that my „account does not satisfy Microsoft requirements, and will not be allowed to proceed at this time“. What does that mean? Our organization meets all requirements. 

I hope someone here can clarify this.

Thanks in advance!