'If this direction is not complied with and if the appellant or his representative does not attend the hearing the adjudicator may determine the appeal in the absence of the appellant unless there is a satisfactory explanation of his absence.'
'32. (1) Where a party has, without a satisfactory explanation, failed: (a) to comply with a direction given under these Rules; (b) to comply with a provision of these Rules; or (c) to appear at a hearing of which he had notice in accordance with these rules; and the appellate authority is satisfied in all the circumstances, including the extent of the failure and any reasons for it, that the party is not pursuing his appeal, the appellate authority may treat the appeal as abandoned.'
's.58(5) For the purposes of the Immigration Acts an appeal under this Part is to be treated as pending during the period beginning when notice of appeal is given and ending when the appeal is finally determined, withdrawn or abandoned. (6) An appeal is not to be treated as finally determined while a further appeal may be brought. (7) If such a further appeal is brought, the original appeal is not to be treated as finally determined until the further appeal is determined, withdrawn or abandoned. (8) A pending appeal under this Part is to be treated as abandoned if the appellant leaves the United Kingdom. (9) A pending appeal under any provision of this Part other than section 69(3) is to be treated as abandoned if the appellant is granted leave to enter or remains in the United Kingdom. (10) A pending appeal under section 61 is to be treated as abandoned if a deportation order is made against the appellant.'