12.1 In order to assure that sufficient funds will be available to make the refunds required by the policy and these rules and regulations and to guarantee promised benefits to policyholders, (a) the aggregate reserves for each credit life insurance policy shall not be less than 130% of reserves as computed n an appropriate mortality table in a manner determined in accordance with the Arkansas Insurance code, and (b) the reserve for each credit disability insurance policy shall not be less than the amount of unearned premium calculated from gross premiums in force upon either a pro rata or sum of the digits basis, as applicable.