Arrived for my appointment (gel infills) and was told in a rude way that they'd never scheduled my appointment (booked 3 days in advance) because the salon's booking system weren't connected to Treatwell yet. When asked how to solve the issue I was advised to come back 2 weeks later due to unavailability. Mistakes can happen but I find it extremely unprofessional when the error is forced upon on me as a customer for internal issues and I'm told "this is not our fault". A bit of customer service would easily have solved the issue. Apart from that I can't comment on the service.