A U.K. Parliamentary group has filed a complaint to the Solicitors Regulation Authority (SRA) against Herbert Smith Freehills over legal advice it gave Lloyds Bank in a long-running fraud case.

The complaint to the U.K. industry regulator, lodged by the All-Party Parliamentary Group for Fair Business Banking, was filed in the last month and is the group’s second against HSF over its Lloyds work, according to its co-chair Kevin Hollinrake, a Conservative MP.