Section 618 provides that any action brought under section 616 or section 617 may be brought in any United States district court or other court of competent jurisdiction. Such suit must be brought within two years from the date on which liability arises, unless a defendant has materially and willfully misrepresented information the Act requires to be disclosed, and the information misrepresented is material to establishment of the defendant's liability. In that event, the action must be brought within two years after the individual discovers the misrepresentation.