Hello.
I have a paid version of your plugin.
My clients complain that "booking a meeting" is not added to the basket after the client has filled out the form, selected the time. The client made a reservation through the Smartphone device. When I checked to register via smartphone, it turned out that after registration, the "Product" is not added to the basket immediately and in order to see the reservation in the basket, you need to refresh the page. This is very inconvenient and shows the poor quality of your solution. I ask you to comment on this and possibly correct or improve the payment system. PS. I don't understand how to connect Paypal and Calendars. Video guide not working