Music fans’ ire toward Ticketmaster for expensive concert tickets may be somewhat justified, according to a fiery investigation by CBC News and the Toronto Star on Wednesday detailing a secret scalping scheme run by the ticket sales company itself. The two outlets sent journalists undercover as scalpers to a live entertainment convention this summer, where Ticketmaster reportedly pitched them on its underground professional resale program, through which it takes a cut of profits.

Ticketmaster, which is owned by live entertainment juggernaut Live Nation, enlists resellers to grab batches of tickets from its site and then flip them for higher prices on a Ticketmaster-owned, invite-only platform called TradeDesk (touted by the company as “The most powerful ticket sales tool. Ever”), according to the report. Ticketmaster gets extra fees from the pricier resale tickets on top of its fees from selling the original ticket. CBC and Toronto Star journalists were told that despite the existence of a Ticketmaster “buyer abuse” division that looks for suspicious online activity in ticket sales, the company turns a blind eye to its TradeDesk users. A sales representative told one of the undercover journalists that there are brokers with “literally a couple of hundred accounts” on TradeDesk, and that it’s “not something that we look at or report.” Read more from Rolling Stone.