For any contract which provides, within the same contract by rider or supplemental contract provision, both annuity benefits and life insurance benefits that are in excess of the greater of cash surrender benefits or a return of the gross considerations with interest, the minimum nonforfeiture benefits must be equal to the sum of the minimum nonforfeiture benefits for the annuity portion and the minimum nonforfeiture benefits, if any, for the life insurance portion computed as if each portion were a separate contract. Notwithstanding the provisions of Sections 38-69-250, 38-69-260, 38-69-270, 38-69-280, and 38-69-300, additional benefits payable (a) in the event of total and permanent disability, (b) as reversionary annuity or deferred reversionary annuity benefits, or (c) as other policy benefits additional to life insurance, endowment and annuity benefits, and considerations for all such additional benefits, must be disregarded in ascertaining the minimum nonforfeiture amounts and paid-up annuity, cash surrender, and death benefits that may be required by this section. The inclusion of such additional benefits is not required in any paid-up benefits, unless such additional benefits separately would require minimum nonforfeiture amounts and paid-up annuity, cash surrender, and death benefits.