(1) If the commissioner approves the application, the commissioner shall promptly issue a certificate of authority and mail the same to the incorporators. If the commissioner denies the application, the commissioner shall promptly mail a notice of the denial to the incorporators, stating therein the reason or reasons for denying the application.
(2) A state bank or trust company, for which the commissioner has approved the filing of a charter and has issued a certificate of authority, is not illegally organized because its purposes and powers are, or have been required by the commissioner to be, limited to fiduciary purposes and powers.