(a) shall be granted to an applicant upon the condition that the appellant, within a period to be fixed by the Court of Appeal or the Court, but not exceeding 90 days from the date of the hearing of the application for leave to appeal, enters into good and sufficient security, to the satisfaction of the Court of Appeal or the Court, for the due prosecution of the appeal, and the payment of all such costs as may become payable to the respondent in the event of —
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(i) the appellant not obtaining an order granting final leave to appeal;
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(ii) the appeal being dismissed for non-prosecution; or
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(iii) the Court ordering the appellant to pay the respondent's costs of the appeal; and