35(3)On written application by any person and after notice to and hearing of all persons interested, or where the holding of a hearing is not possible, on receipt of a statutory declaration, or such other evidence satisfactory to the Registrar General as may be adduced by any person interested, the Registrar General, if he is satisfied that a certificate was obtained or is being used for fraudulent or improper purposes, may make an order requiring the delivery to him of that certificate.