(a) An insurer shall provide all information relevant to a rate used by the insurer to:
(1) any person who is or will be affected by the rate or by a modification of the rate; or
(2) the authorized representative of a person described by Subdivision (1).
(b) The insurer shall provide the information within a reasonable time after receipt of a written request for the information and on payment of any reasonable charge set by the insurer.