The Federal Trade Commission and a bipartisan group of state attorneys general sued Ticketmaster and parent company Live Nation Thursday, alleging the companies use illegal tactics that force consumers to pay more for live events.

The FTC claims Ticketmaster advertises lower ticket prices, imposes fake purchase limits, and works with brokers who use fake accounts to buy tickets and resell them at high markups, from which Ticketmaster collects additional fees.

Ticketmaster dominates over 80% of U.S. concert venues, with consumers spending more than $82.6 billion on its platform between 2019 and 2024, ABC News has reported.

The lawsuit, filed in California, comes after high-profile failures in ticket sales, including Taylor Swift’s Eras Tour, and follows federal actions aimed at banning hidden fees and regulating secondary ticket markets.