Plaintiffs' lawyers acknowledged Verizon Wireless' service contracts with subscriber contestants include a class arbitration ban, but they maintain the litigation does not implicate such contracts and that such a ban is otherwise unconscionable and unenforceable. AT&T suit On a related front, a class-action lawsuit moving forward in federal court in Washington state argues the class-action ban in AT&T Mobility's service contracts should be invalidated. "At stake here is the right of AT&T customers to get a fair hearing and obtain justice," said Harvey Rosenfield, a lawyer with the non-profit Foundation for Taxpayer and Consumer Rights. "If the court rules that AT&T and Cingular's customers cannot join together to sue these companies, then the companies will never be held accountable." Plaintiffs said that when then Cingular Wireless bought then-AT&T Wireless, in 2004, it promised regulators and the public that customers would continue to enjoy the same quality service.