Postponement of poll
21.  If the Town Council, after having given in accordance with rule 20 notice of a poll relating to any lift upgrading works in any building, decides to postpone the date of commencement or to change the polling place of the poll, the Town Council shall give notice of the postponement or change by affixing, not less than 2 days before the original date of commencement of the poll, at a conspicuous place in the building, a notice stating the changes in the polling days and hours or the polling place (as the case may be) of the poll.