Did you give your professional permission to leave? If that's the case, you can adjust the hours by contacting our customer experience team and explaining the situation to them. Note that our bookings are subject to a three hour minimum.
If the pro left without your permission, please be sure to rate them in the app. Any pro you rate lower than three stars won't be matched with you again. After that, contact the customer experience team to file a report and get your money back.