Good afternoon Diane and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
Full disclosure, we are currently looking at providing compatibility with WooCommerce Memberships.
This unfortunately means that, at least for the time being, it is not officially supported on our end.
With that in mind, I would still like to try something.
I believe that adding the following snippet in your theme’s functions.php file might prove to be helpful: https://gist.github.com/GeoffEW/ef196ef3154a747a851c771ae45fdecd
Let me know if that helps.
Have a great day!
Geoff B.