When authorized by the Commissioner, a licensee may change the location of a branch office from one location to another. The Commissioner must give his or her approval or denial to the licensee within 25 days from the date of application for a change in branch location unless the Commissioner gives notice within the original 25-day period that he or she is extending the period for decision for a term not to exceed an additional 25 days. Every licensee shall keep posted in a conspicuous place in each branch office the certificate issued by the Commissioner permitting the operating of the branch office.