Kathleen Lowden sued cellular phone company T-Mobile USA, Inc., contending that its service agreements were not enforceable under Washington state law. Lowden moved to create a class-action lawsuit, in which her claims would extend to similarly affected customers. She contended that T-Mobile had improperly charged her fees beyond the advertised price of service and charged her for roaming calls that should not have been classified as roaming. T-Mobile moved to force arbitration in accordance with provisions that were clearly set forth in the service agreement. The agreement also specified that no class-action lawsuit could be brought, so T-Mobile asked the court to dismiss the class-action request. Was T-Mobile correct that Lowden’s only course of action would be to file arbitration personally?