Days after thousands of Bruce Springsteen tickets were mistakenly oversold by TicketsNow for an upcoming show in the city, Washington, DC Attorney General Peter Nickles is launching an investigation into the matter.

Nickles told WTTG Fox 5-TV that the debacle warranted a probe because his office has received numerous complaints. See the video below.

TicketsNow, a secondary ticket market site that resells tickets at a premium, is owned by Ticketmaster Entertainment, and the two companies have come under intense scrutiny over the last several months for other problems as it relates to Springsteen and other ticket sales. In one instance, the troubles led to the New Jersey Attorney General enticing Ticketmaster to settle several complaints for $350,000, although Ticketmaster did not admit any wrongdoing.

“I’m going to decide in the next 24 hours as to whether we should issue a subpoena to the relevant people and find out what’s going on because we’ve had a number of complaints,” Nickles told WTTG.

While Ticketmaster’s problems mount as it relates to TicketsNow, the company remains under investigation by the antitrust division of the U.S. Department of Justice as part of the company’s proposed merger with Live Nation.