Does this video help?How to Activate Google Workspace for Nonprofits So, when you say 'approved', do you mean that Google has verified your application (and requirements), and notified you that you've been granted this Workspace access? If yes, then ...

Have you contacted Support to open a case on this matter? Workspace Admin Help - Contact Google Workspace support

Are you sure that Template submission has been enabled (in the Admin Console) for your user account?

WHEN??!  It's almost June 2022!