SIOUX CITY, Iowa (AP) — A law firm has sued two clients for more than $2.5 million the firm says it’s owed from the more than $7.6 million the clients have recovered from Sioux City for a 2016 collision with a city bus. The Sioux City Journal reports that the Munger, Reinschmidt & Denne firm sued Chad and Rosanne Plante on Tuesday, saying they’d agreed to pay a one-third contingency fee if their claims against the city pertaining to the collision were settled without filing a lawsuit against the city. They were. The firm’s Stan Munger says the Plantes told him the contingency agreement “is against public policy.”

Rosanne Plante says she and her husband have paid Munger’s firm $380,000, and “he has apparently determined that is not sufficient.”