and, if a particular department or officer is specified as part of its address details provided under Clause 12.3 (b) (Addresses), if addressed to that department or officer. If any such communication or document is received on a day which is not a working day in the place where it is received, it will only be effective on the next following working day at such place. “Working day”, for this purpose, means a day other than a Saturday, Sunday and bank holiday in such place; and