Any general notice may be given by the Bank to any member or debenture holder either by advertisment or personally, or by sending it through the post in a prepaid letter addressed to such member or debenture holder at his or her registered address, or (if he or she has no registered address in the Republic of South Africa) at the address (if any) within the Republic supplied by him or her to the Bank for the giving of notices to him or her. Any notice which may be given by advertisement shall be inserted in the Gazette and in such newspapers as the directors may from time to time determine.