Hi Katie,
My name is Maya and I’m a product manager at Wix Bookings.
Currently, we are not integrated with Invoicing and Quotes. However, it sounds like what you aim to create can be achieved with Pricing Plans.
You can create service and connect them to Pricing Plans (membership, packages) in order to bill them with reoccurring payments.
I’d love to help and answer any question. Please feel free reaching out to me directly with any issue - mayaf@wix.com.
Thanks!
Maya