Appointments+ plugin - I'm having trouble editing short code on the appointment detail box.

Hi there, I'm having trouble with the text on top of the box that displays the appointment details in appointments +. It says something like " please check details below and confirm"
The problem I've got is that sentence is all joined up, no gaps. I've tried changing it in short codes but nothing is happening.

And 1 more thing is how do I show the legends boxes on the bottom of the calender, free, busy, they are not displaying.
Kind Regards
Helen