Hi Guido,
Thanks for writing in!
I’m not sure that our products are the best fit for you. The Events Calendar is great for creating events and displaying them in a calendar format, but not-so-great at booking appointments, especially for recurring events.
For example, Events Calendar PRO adds recurring event functionality to The Events Calendar and Event Tickets Plus (alongside Event Tickets) allows you to create and sell tickets for the events, but Event Tickets Plus currently does not support selling tickets for recurring events. It’s a limitation we’re aware of and working on, but is not currently available at this time.
If you’re looking for calendar plugins that are more suited for booking appointments, you might want consider the following:
Here’s a link to a search of WordPress appointment plugins that might also help you find another solution.
Sorry our plugins aren’t the best fit, but does this at least help answer your question? Please let me know.
Cheers!
Geoff