(1) The prohibition against rebates or discounts provided for in 33-18-210 does not apply with respect to property or casualty insurance sales to:
(a) an active, retired, or honorably separated member of the United States armed forces, including a member of a reserve component as defined in 37-1-138; or
(b) a spouse, surviving spouse, dependent, or heir of a United States armed forces member referred to in subsection (1)(a).
(2) This section does not permit unfair discrimination based on rank or pay grade.