It is the policy of most hair salons to fix what you aren't happy with. While cutting too much off can't be fixed, a style definitely is. They want you to come back so will do everything in their power to keep you happy. If they don't, take your business elsewhere. The policy of Frederic Fekkai Beaute de Provence salon in Manhattan and Beveryly Hills is to offer a free redo or a refund within two weeks.