Director-General may refuse to issue certificate
5.—(1)  The Director-General may, in his or her discretion, refuse to issue a certificate to an applicant if —
(a)the applicant has failed to satisfy the Director‑General of any of the matters specified in rule 3(1) or (3);
(b)the applicant has failed to satisfy the Director‑General of any of the matters specified in rule 4(1); or
(c)for any other reason, the Director‑General is of the opinion that it is undesirable to issue a certificate to the applicant.
(2)  Where the Director‑General is of the opinion that an application for the issue of a certificate must not be granted, the Director-General may give to the applicant an opportunity of showing cause why the application should not be refused.
(3)  Where the Director-General refuses to issue a certificate, the Director‑General must, if requested to do so by the applicant, state in writing the reasons for the refusal.