Hi Samuel,
Thanks for reaching out! I’d be happy to help.
The difference between personal and business licences is that personal is only for 1 site. While business is up to 3 sites. So if you only need it for one site then personal is fine.
We only take a couple of days to review a request for a non-profit organization, not several weeks. So if you think you can wait that time then feel free to make the submission.
Here’s all the information you need to apply: https://theeventscalendar.com/knowledgebase/do-you-offer-discounts-for-nonprofit-organizations/
And whenever you are ready you can submit the form here: https://theeventscalendar.com/apply-for-npp/
Hope this helps and let me know if there is any other question you have.
Thanks!
Victor