I-ve solved this problem. It was not related to the plugin. Im sorry to bother! 🙂
Hi! I think I found a pretty big issue with this. I discovered that this fix doesn’t work on mobile devices. You think you could fix that? I do alot of restaurant websites. They mostly wan’t the number in the e-mail notification. Most of their booking requests comes via mobile devices. So this is kind of a deal breaker 🙁
It also seems like the booking requests that are sent from mobile devices doesn’t show up in the bookings list in the wp-admin view.