If you miss an appointment and/or running late...and didn't make it...
You can Reschedule a Confirmed Appointment by visiting the "Book Online" section, and "Request to Book" another appointment.
By doing this you will not lose your deposit and can schedule your appointment for another time. Be sure to write in the note box when/time of your original appointment was scheduled. Also, be sure to write down any changes for the service you are requesting.