56.13.1 Costs of an application for consent to an extension of time for taking any step in a proceeding are in the discretion of the Taxing Officer.
56.13.2 The Taxing Officer shall not allow the costs of more than one extension of time unless satisfied that the extension was necessary and could not, with due diligence, have been avoided.
56.13.3 The costs of an application to extend time shall not be allowed unless the party making the application has previously applied to the opposite party to consent to a sufficient extension of time and the opposite party has not consented, or the Taxing Officer considers that there was a good reason for not making application to the opposite party.