“… only reasonable or legitimate expectation is that the discretion relevant to his application to extend time will be exercised judicially in accordance with established principles of what is fair and reasonable. In those circumstances, it is incumbent on the applicant for an extension of time to provide the court with a full, honest and acceptable explanation of the reasons for the delay. He cannot reasonably expect the discretion to be exercised in his favour, as a defaulter, unless he provides an explanation for the default.” 26. The Judgment then continues to set out a number of considerations in which the principles are applied. At 2, page 71D-E, he again repeated that the Appeal Tribunal’s discretion would not be exercised: “… unless the appellant provides the tribunal with a full and honest explanation of the reason for non-compliance. If the explanation satisfies the tribunal that there is a good excuse for the default, an extension of time may be granted. …” 27. In the list which followed, as an example of explanations which have been rejected and were inappropriate, Mummery J included “oversight of the passing of the limit, for example, by a solicitor under pressure of work”