California’s managed-care regulator announced Wednesday it has fined insurance giant Anthem Blue Cross $5 million for repeatedly failing to resolve consumer grievances in a timely manner.

The state Department of Managed Health Care criticized Anthem, the nation’s second-largest health insurer, for systemic violations and a long history of flouting the law in regard to consumer complaints.

“Anthem Blue Cross’ failures to comply with the law surrounding grievance and appeals rights are long-standing, ongoing and unacceptable,” said Shelley Rouillard, director of the Department of Managed Health Care. “Anthem knows this is a huge problem, but they haven’t addressed it.”