(1) Any person who is aggrieved in consequence of any agreement, decision, concerted practice or abuse which is prohibited under section 4 or 5 shall have a right of action for relief under this section against either or both of the following, namely -
(a) any undertaking which is or has at any material time been a party to such an agreement, decision or concerted practice or has been guilty of such an abuse,
(b) any director, manager or other officer of such an undertaking, or a person who purported to act in any such capacity, who authorised or consented to, as the case may be, the entry by the undertaking into, or the implementation by it of, the agreement or decision, the engaging by it in the concerted practice or the doing by it of the act that constituted the abuse.
(a) Subject to paragraph (b), an action under this section shall be brought in the High Court.
(b) An action under this section may be brought in the Circuit Court in respect of any abuse which is prohibited