(1) An application for leave to appeal to the Court of Appeal under section 14A or 17A of the Act or under any other Act or otherwise is commenced by filing with the Registrar—
(a) an application in accordance with Form 64A;
(b) a written case; and
(c) any additional document required by any applicable practice direction to be filed at the time of commencing such an application.
(2) Each person who was a party to the proceeding or matter in which the decision in question was made and who is affected by the application for leave to appeal shall be named as a respondent to the application.
(3) An application other than an application for leave to appeal to the Court of Appeal is made by filing with the Registrar—
(a) an application in accordance with Form 64B;
(b) an affidavit in support in accordance with any applicable practice direction; and
(c) any additional document required by any applicable practice direction to be filed at the time of commencing such an application.
(4) Each person who is affected by the application shall be named as a respondent to the application.