Scheduling is easy, but there are a few things you should know. To reserve your appointment online, you will need to enter your credit card info to be charged for the full amount. There is also a convenience fee added to your invoice which is 4% of the total service. If for any reason you need to reschedule or cancel your appointment, you can do so up to 3 hours before your appointment. If you fail to comply with the 3 hour cancellation policy, you will be charged 100% of the services scheduled. For second or subsequent offenses, you will be charged double (or 200%).