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New Orleans Pelicans fans cheer against the Portland Trail Blazers during the second half of game four in an NBA basketball playoff series at the Smoothie King Center in New Orleans, La. Saturday, April 21, 2018.

If you managed to get your hands on pre-sale tickets for one of the New Orleans Pelicans' home playoff games, you might want to check your account. 

Due to an "issue" in the team's ticketing system, a second pre-sale window scheduled for Tuesday has been postponed, the team announced Monday night, and others learned Tuesday morning that their orders have been canceled.

Ticketmaster sent out an email to users with canceled tickets, citing that the tickets were purchased "with a leaked presale password that was distributed without our consent." 

Ticket refunds were expect to be fulfilled within 7-10 days, the email said.

The team announced its action in a statement about 2:30 p.m. Tuesday, explaining the issues, which resulted in the unauthorized sale of 2,500 tickets per each guaranteed playoff home game.

"While this same password procedure has been used in the past without incident, the unprecedented demand for playoff tickets resulted in tickets being purchased by non-season ticket or partial season ticket holders ..." read a statement from the team. "We have made every attempt to communicate this action, and apologize to, those purchasers. We have also communicated with secondary ticket providers to inform them of the issue so that they may help facilitate refunds for voided tickets sold on their respective platforms."

The presale will begin again Wednesday morning for Pelicans half-season, 12-game plan and Pelicans Insider members. 

"The Pelicans sincerely apologize for any inconveniences this may have caused," read the team's statement.

Monday morning was the first pre-sale window to buy tickets for the Pelicans' upcoming Western Conference semifinals series, the team's first appearance in the second round of the playoffs since 2007-2008 season when they lost to the San Antonio Spurs in seven games.

The Monday pre-sale was reserved for full and partial season ticket holders to give those fans the first crack at tickets to at least two home games (date, times and opponent still to be determined).

A second Tuesday pre-sale, which was said to be reserved for another segment of fans who subscribe to the team's e-mail newsletter, "Pelicans Insider," was postponed. 

"Due to an issue in our ticket-buying platform, we, regretfully, have to delay your Insider Playoff Presale," the email said. "Giving our most loyal fans first crack at postseason tickets is a priority -- so we need to get it right. We’re working quickly on a fix and will announce the rescheduled presale as soon as we can."

The "issue" apparently stemmed from Monday's presale when the club issued a password allowing season ticket holders access to buy tickets before the general public. But the password apparently was shared wildly, and people who weren't meant to have access yet to tickets were able to purchase them. 

After sweeping the Portland Trail Blazers in Round 1, New Orleans awaits its second-round opponents to be determined. It's likely to be the reigning NBA champion Golden State Warriors, who leads the Spurs 3-1 in a best-of-7 series. 

Game 5 is Tuesday night at Oracle Arena in Oakland.