Scholarship award not being honored
Since this is an organization outside of your university, maybe talk to the organization first and find out what's what? 

You should have been given some sort of contact when they first awarded you the scholarship, so I would go back to that person via email (to give them a chance to respond) or phone them directly if the timing is more urgent.

If you know any of the other recipients, I would recommend combining your efforts together or seeing if they've already taken some steps to find out what's going on.