42.3—(1) A solicitor may apply for an order declaring that he has ceased to be the solicitor acting for a party.
(2) Where an application is made under this rule—
(a)notice of the application must be given to the party for whom the solicitor is acting, unless the court directs otherwise; and
(b)the application must be supported by evidence.
(3) Where the court makes an order that a solicitor has ceased to act—
(a)a copy of the order must be served on every party to the proceedings; and
(b)if it is served by a party or the solicitor, the party or the solicitor (as the case may be) must file a certificate of service.