5.—(1) If the Agency is satisfied that an enforcement undertaking has been complied with, it must issue a certificate to that effect.
(2) The Agency may require the person who has given the undertaking to provide sufficient information to determine that the undertaking has been complied with.
(3) The person who gave the undertaking may at any time apply for such a certificate.
(4) The Agency must make a decision as to whether to issue such a certificate, and give written notice of the decision to the applicant, within 14 days of such an application.
(5) The person to whom the notice is given may appeal against a decision not to issue a certificate on the grounds that the decision—
(a)was based on an error of fact;
(b)was wrong in law;
(c)was unfair or unreasonable;
(d)was wrong for any other reason.