Hi Pawel,
Thanks for checking out our site!
If you need specific forms for your organization, can you please send us an email at support @ theeventscalendar.com? We’ll be happy to help you out with that from there!
Regarding the bundle, we don’t have an unlimited Importer bundle available from the front end, but if you include this question in the email about the forms, we can probably help you out with this 🙂
We do not offer discounts for nonprofits, but we do have a Nonprofit Partnership Program that provides a free (Personal, unsupported) license of either Event Tickets Plus or Events Calendar Pro to approved organizations.
If you have any other questions regarding plugin features/licensing, please let me know! Otherwise, we’ll keep an eye out for your email.
Thank you,
Jennifer