If you have to cancel your appointment less than 24hr in advance, a 50% cancellation fee will apply. Why? Because by then I won’t be able to cancel renting the room, I will have prepared your session, and I blocked anyone else to schedule this time.
Tip: If you spontaneously can’t make it to your appointment, you can send a friend / family member to avail of the appointment instead. That way you don’t have to pay a cancellation fee.