There is no cancellation charge if you cancel your appointment or full booking longer than 24 hours in advance of the next appointment with your service provider. 

If you are canceling with less than 24 hours before your next booking, you can be charged with a last minute cancellation fee. This fee is anywhere from 0% to 100% of the cost of the original booking. It is up to the service Home Service Professional whether or not this might get charged.