Section 8. Every medical service corporation shall annually, on or before the first day of March, file in the office of the commissioner a statement, verified by at least two of the principal officers of said corporation, showing its condition as of the thirty-first day of December next preceding. Such statement shall be in such form and shall contain such matters as the commissioner shall prescribe. A corporation neglecting to file its annual statement within the time herein specified shall forfeit one hundred dollars for each day during which such neglect continues, and upon notice by the commissioner to that effect, its authority to do business shall cease while such default continues.