Hello Benjamin

Please provide me a temporary WP-admin (administrator) user for your site where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials here just check PRIVATE Reply so nobody can see them except us.

I went through the same procedure you did, Benjamin.

Did you check your SPAM folder? You can see that I received the cancelation email without issues, so it does work for me.

Let me know if the spam folder is blank, and if it is - please record your screen, and send it to me so that I can see how you're testing this. I doubt you're making some mistakes, but you can never know.

Hi again Benjamin.

I tried it again, booked the appointment from the back-end first, then I canceled it from the back-end, and the email was sent:

Then I booked from the front-end, canceled it from the back-end, and again - the email was sent. There's no point in adding another screenshot, since it's the same email, and the same email address, but it all works for me.

Can you provide me with the login for the manager that experiences this issue? Remember to send a PRIVATE response.

Hello again Benjamin

Deleting an appointment actually triggers the "Rejected" status, and the "Appointment Rejected" email notification, which is not active on your site.

So, you may be right when you thought of this - it could lead us down the right path. Please enable the "Appointment Rejected" email, and do it again - it should be resolved.

That's great news, Benjamin, thanks for letting me know!

You basically solved this by noticing the small details. Thanks!

If you have any further questions or issues, please feel free to open a new ticket, and we'll gladly help.