Multiple email notifications

Heya, my client has been recieving double up emaisl for notifications of bookings.
I looked through smpt2go to see when it started happening and it was around the same time they made some “sample” booking which i don’t know what that was but i think the client set it up in the “styles editor”.
I went it and deleted the double up on the booking table in the styles editor.
But since then the client has been recieving 2 emails

The page I need help with: [log in to see the link]