Recurring Payment & Ticket system

I'm building a business and I'm planing Recurring Payments... possibly for free. I'm planing using WooCommerce or EasyDigitalDownloads for handling payments, a plugin for those 2 or perhaps a free SaaS alternative?

p.s. a free SaaS alternative would be great, since I won't have time to deal with emails of they got lost/junked.

thank you in advance!