4. In rules 3 and 7, references to the person from whom the cash was seized include references to the sender and the intended recipient, where this is known, of a letter, parcel, container or other means of unattended dispatch, but a magistrates' court shall not decline to hear an application in such a case solely on the ground that it has not been proved that the sender or intended recipient has received a copy of the application and notification of hearing under rule 3(2).