(a) No home repair contractor or home financing agency shall transact any business subject to this act under any other name or maintain an office at any other location than that designated in the license.
(b) No home repair salesman shall transact any business subject to this act for any employer except that designated in the license.
(c) In case such location or employer be changed, the licensee shall inform the commissioner of such change within 10 days and the commissioner shall indorse the change of location or change of employer on the license without charge.