26. Where payments remain due when a contributor transfers his participation to the provincial pension plan in accordance with sections 4 and 8, he may pay the balance of the cost of redeeming any period of service by making a single payment within 60 days following the date on which he joins the provincial pension plan.
Where the contributor does not pay the balance of the redemption cost in accordance with the first paragraph, only that part of the period of service redeemed for which payments where made shall be credited to his file.