Blue Cross and Blue Shield of North Carolina wrongfully allowed policyholders to be charged higher rates for medical services after they received their maximum benefits, according to a lawsuit that recently won class action status. The court ruling in the nearly 3-year-old suit paves the way for thousands of policyholders to seek claims against Blue Cross and Blue Shield of North Carolina, say attorneys. The lawsuit accuses Blue Cross of breach of contract, breach of good faith, and unfair and deceptive trade practices.