Where a firm statement has been made that an alternative offer will not be extended or reintroduced, neither that alternative, nor any substantially similar alternative, may be extended or reintroduced. Where, however, such a statement has not been made and an alternative offer has closed, an offeror will not be precluded from reintroducing that alternative at a later date. Reintroduction constitutes a revision of the offer and is, therefore, subject to the requirements of, and only permitted as provided in, this Section.