Notwithstanding the provisions of clauses 12 and 14 an employee whose conditions of employment cease to be regulated by this Agreement due to promotion or change in occupation to an occupation not provided for in this Agreement, shall be entitled to leave pay and leave enhancement pay calculated in accordance with the provisions of clauses 12 and 14 which shall be paid to him on termination of employment, or the date when he next proceeds on leave, or the date on which he would have been entitled to go on leave had this Agreement continued to regulate his conditions of employment, whichever is the earlier date.