(a) The maximum premium payable by any member shall be expressed in the policy or in the application for the insurance. The maximum premium may be a cash premium and the contingent premium not less than the cash premium, or may be solely a cash premium.
(b) No policy shall be issued for a cash premium without an additional contingent premium, unless the company has a surplus of at least one hundred thousand dollars ($100,000) or a surplus that is not less in amount than the capital stock required of domestic stock insurance companies transacting the same kinds of insurance.