How can I give someone a free link to a paid Webinar?

[budgetbb]

Hey there!

         I am hosting paid webinars this month. I want to provide some supporters a free link to attend my webinar without having to pay. I do not have Zoom Events which apparently offers an option to do this. I only the Zoom webinar and a pro account and trying to figure out a solution without needing to pay another account. I tried sending my friend the link that is generated on the calendar invite but when she clicked on it, it made her register and pay. 

I am accepting payment via PayPal and I do not think I can create a code to override the $10 charge. I am just a bit stumped on this and trying to provide some people a free invite to my webinar.

Thanks!