When anything which is required to be done or performed in terms of this Act on or before a specified day or at a specified time or during a specified period, has not been so done or performed, the Minister may, if he is satisfied that such failure was due to an error or oversight, and that it is in the interest of the surveying profession to do so, authorise such thing to be done or performed on or before any other day or at any other time or during any other period, as he may direct, and anything so done or performed shall be of full force and effect and shall be deemed to have been lawfully done or performed in accordance with the provisions of this Act.