20. (1) Where the Commission is of opinion that any person is engaged or is about to be engaged in any act or practice which constitutes or is calculated to constitute a contravention of the provisions of this Ordinance or of any rules made thereunder, or that any person has neglected, or is not likely, to do an act the omission or failure to do which constitutes such contravention, it may, by order in writing, direct such person to abstain from doing the act or committing the practice which constitutes or is calculated to constitute such contravention, or to do the act, the omission or failure to do which constitutes such contravention. (2) Every person to whom a direction under sub-section (1) is given shall comply therewith in such manner, if any, and within such time, as may be specified therein.