My appointment confirmation came through with a different time to that I had booked. I called and the correction was made. However, when I turned up for my treatment they hadn't confirmed it and the therapist had gone home!
I had to wait 30 minutes for her to get back, which meant that after my (very good) deep tissue massage, I had to jog home in order to make the next appointment I had. Not the most relaxing way to get a massage!