Any person adversely affected by any pattern or practice of telemarketing which violates any rule of the Commission under section 6102 of this title, or an authorized person acting on such person’s behalf, may, within 3 years after discovery of the violation, bring a civil action in an appropriate district court of the United States against a person who has engaged or is engaging in such pattern or practice of telemarketing if the amount in controversy exceeds the sum or value of $50,000 in actual damages for each person adversely affected by such telemarketing. Such an action may be brought to enjoin such telemarketing, to enforce compliance with any rule of the Commission under section 6102 of this title, to obtain damages, or to obtain such further and other relief as the court may deem appropriate.