Hi Charles.
While I can’t guarantee anything specific, I think it’s safe to say we could accommodate something fair if/when that time comes.
If/when that time comes, please email support @ the events calendar.com (without spaces) to request what you think is fair, and our manager will determine how to handle it for your specific situation at that time.
Thanks for your interest in our plugins!
Last but not least, we have a pretty great Refund Policy so you can buy one or many of our add-ons and thoroughly test them.
Let me know if you have any follow-up questions.