At any time during the term of the premium finance agreement, but not later than one year after the last payment thereunder, the company shall upon written request of the insured, give or mail to him a written statement of the dates and amounts of payment, and the total amount, if any, unpaid thereunder. Such a statement shall be supplied once each year without charge; if any additional statement is requested, the company shall supply such statement at a charge not exceeding one dollar ($1) for each additional statement so supplied.