If the appellant in cassation resides outside the island where the court which handed down the contested decision has its seat, the statement of appeal provided for in Article 576 may also be made by letter signed by the applicant for cassation and addressed to the registrar of the court that handed down the contested decision. On receipt of this letter, the Registrar shall draw up the notice of appeal and attach to it the letter from the applicant for judicial review. Within the time limits laid down by the articles 568 and 855, the appellant in cassation is required to confirm his appeal at the town hall or gendarmerie closest to his residence.