"The grant of an extension of time under this rule is not automatic. The object of the rule is to ensure that those Rules which fix times for doing acts do not become instruments of injustice. The discretion to extend time is given for the sole purpose of enabling the Court or Justice to do justice between the parties. This means that the discretion can only be exercised in favour of an applicant upon proof that strict compliance with the rules will work an injustice, upon the applicant. In order to determine whether the rules will work an injustice it is necessary to have regard to the history of the proceedings, the conduct of the parties, the nature of the litigation, and the consequences for the parties of the grant or refusal of the application for extension of time. When the application is for an extension of time in which to file an appeal, it is always necessary to consider the prospects of the applicant succeeding in the appeal. It is also necessary to bear in mind in such an application that, upon the expiry of the time for appealing, the respondent has 'a vested right to retain the judgment' unless the application is granted. It follows that, before the applicant can succeed in this application there must be material upon which I can be satisfied that to refuse the application would constitute an injustice". (Authorities omitted).[13]