Any insurance company doing business in this state which neglects to make and file any statement in the manner and within the time prescribed in this chapter forfeits one hundred dollars for each day’s neglect, and upon notice by the commissioner to that effect, its authority to do new business ceases during the default. Any new business done by an insurance company after it has neglected to make a required statement is in violation of law. The commissioner may grant an insurance company an extension beyond the date designated in this section and may waive or reduce any penalty during the extension, upon a showing of good cause by the insurance company.