So anyway, we all piled into the vehicle and drove to the appointment. We didn't get there until 12:30 (normal session only 50 minutes). She, having got my message, called the waiting list and took someone else for that time. Hey, works out I suppose. Not sure if we owe her for the appointment even though we didn't make it.
I have another appoint for 9am Friday now (It was going to be noon again but my dad complained about it breaking up his day).