(a) No claim shall be made against the fund for benefits or the return of contributions after the lapse of seven years from the date on which the secretary-treasurer of the fund shall have mailed by first-class mail to the last known address of the firefighter or volunteer firefighter or other person eligible therefor, as such address is reflected by the records of the fund, a written notice that the firefighter or volunteer firefighter or other eligible person is or may be eligible for such benefits or return of contributions; and, in the event any claim for benefits or the return of contributions is barred in accordance with this subsection, the amounts thereof shall be the property of this fund. The bar period prescribed by this subsection shall not begin to run with respect to a firefighter or volunteer firefighter on leave of absence who has elected to leave his or her contributions in the fund until the failure of the firefighter or volunteer firefighter to provide written confirmation of his or her election to remain on leave of absence within 60 days of a not more frequent than biennial request for such confirmation mailed to the last known address of such firefighter or volunteer firefighter, as such address is reflected by the records of the fund.

(b) No action shall be brought contesting any determination of the board with respect to eligibility for membership or continued membership in the fund, creditable service, eligibility for retirement benefits, the amount of retirement benefits payable, or the termination or suspension of retirement benefits after the expiration of 60 days from the date on which written notice of the final determination of the board is mailed by first-class mail to the last known address of the firefighter or volunteer firefighter or of the designated representative thereof, as such address is reflected on the records of the fund; and no court shall have jurisdiction of any action brought after the expiration of such period. The written notice provided for in this subsection shall contain notice of the limitation established by this subsection.