"In accordance with Rule 18(2) of the [2000 Rules] any application for leave to appeal to the Immigration Appeal Tribunal together with all the grounds of appeal must be submitted to the following address WITHIN 28 DAYS OF RECEIPT OF THIS NOTICE... This notice is deemed to have been received by you 28 days after it was posted. Therefore you must lodge your application within 56 days of the date of this notice."
"An application for leave to appeal shall be made by serving upon the Tribunal the appropriate prescribed form........."
"... and those forms, or similar forms, may be used with any variations that the circumstances may require."
"… the Tribunal before whom the defect is properly raised has the task of determining what are to be the consequences of failing to comply with the requirement in the context of all the facts and circumstances of the case in which the issue arises. In such a situation the Tribunal's task will be to seek to do what is just in all the circumstances…."