On receipt of the commission's written opinion, dismissal of the case, or refusal to accept a petition for review, any aggrieved party may seek appellate review by ..ling a petition for review in the Supreme Court in conformance with Form 2590, with certificate of service upon the commission, not later than 30 days after the receipt of the commission's opinion, dismissal, or refusal.
Mo. Sup. Ct. Op. R 12-23.01