(1) The court may order —
(a) an appellant; or
(b) a respondent who files a counter notice asking the court to vary or set aside an order of a lower court,
to give security for the costs of the appeal.
(2) An application for security may not be made unless the applicant has made a prior written request for such security.
(3) In deciding whether to order a party to give security for the costs of the appeal, the court must consider —
(a) the likely ability of that party to pay the costs of the appeal if ordered to do so; and
(b) whether in all the circumstances it is just to make the order.
(4) On making an order for security for costs the court must order that the appeal be dismissed with costs if the security is not provided in the amount, in the manner and by the time ordered.
(5) Any costs to be paid under paragraph (4) must be assessed by the court or as the court directs.
• Rule 65.12 deals with the assessment of costs.