EDIT: I found your email addresses for contact but going on your main website: https://www.onecalendar.nl/support/contact
But in case you still want the information on how I couldn't obtain it while in app, look below.
ORIGINAL TEXT:
Looking for this information to save it off and keep for reference. But in attempting to find your contact email address, discovered the app was not providing it.
I am using the Windows desktop app. Windows 10. I obtained the app through the Microsoft Store and this includes when I purchased the Premium version.
Application version: 2022.1021.1.0 (X64) (Note that I did verify there were no