Nonprofit discount on an existing account?

I created our JotForm account for our non-profit prior to the existence of a non-profit discount.  How do I get the discounted rate?

Hello cfsfamily,

Please click on the following URL to apply to apply for non-profit discounts and upload relevant documents: https://www.jotform.com/nonprofit/pricing 

If your application is approved, you will receive an email with a link to upgrade account which will give you discounted price.

Thank you!