For any complaint filed within 3 years after the cause of action accrued, the Commission shall, upon petition of the complainant and after notice and hearing, direct payment of reparations to the complainant for actual injury (which, for purposes of this subsection, also includes the loss of interest at commercial rates compounded from the date of injury) caused by a violation of this chapter plus reasonable attorney’s fees. Upon a showing that the injury was caused by activity that is prohibited by section
or (6) of this Appendix or section
or (3) of this Appendix, or that violates section
or (3) of this Appendix, the Commission may direct the payment of additional amounts; but the total recovery of a complainant may not exceed twice the amount of the actual injury. In the case of injury caused by an activity that is prohibited by section
or (B) of this Appendix, the amount of the injury shall be the difference between the rate paid by the injured shipper and the most favorable rate paid by another shipper.