Whenever a notice is to be given personally or sent by post, the notice may be given by the Bank to the persons entitled to a share in consequence of the death or insolvency of a member by sending it through the post in a letter addressed to them by name, or by the title of representatives of the deceased, or the trustees of the insolvent, or by any like description, at the address (if any) in the Republic of South Africa supplied for the purpose by the persons claiming to be so entitled or (until such address has been so supplied) by giving the notice in any manner in which the same might have been given if the death or insolvency had not occurred.