In group life policies there shall be a provision that if the group policy terminates or is amended so as to terminate the insurance of any class of insured persons, every person insured thereunder at the date of such termination, other than a child of an employee insured pursuant to section seven of this article, whose insurance terminates and who has been so insured for at least three years under a group policy issued five years or more prior to such termination date, shall be entitled to have issued to him by the insurer an individual policy of life insurance, subject to the same conditions and limitations as are provided by section sixteen of this article, except that term insurance shall not be available and, except that the group policy may provide that the amount of such individual policy shall not exceed the smaller of (a) the amount of the person's life insurance protection ceasing because of the termination or amendment of the group policy, less the amount of any life insurance for which he is or becomes eligible under any group policy issued or reinstated by the same or another insurer within thirty-one days after such termination, and (b) $2,000.