(a) Except as otherwise provided by this section, if an insurer notifies a claimant under § 542.056 that the insurer will pay a claim or part of a claim, the insurer shall pay the claim not later than the fifth business day after the date notice is made.
(b) If payment of the claim or part of the claim is conditioned on the performance of an act by the claimant, the insurer shall pay the claim not later than the fifth business day after the date the act is performed.

(c) If the insurer is an eligible surplus lines insurer, the insurer shall pay the claim not later than the 20th business day after the notice or the date the act is performed, as applicable.