(1)  A person or external party may apply to the Ombudsman under this section for a review of a decision in relation to which section 43(1) , (2) or (3) applies if –

(a) the person or external party has made an application for internal review under section 43(1) , (2) or (3) in relation to the decision; and

(b) either –

(i) the person or external party has been informed of the result of the review; or

(ii) 15 working days have elapsed since the application was made.

(2)  The application referred to in subsection (1) must be made within 20 working days of an event referred to in subsection (1)(b) .