Ticketmaster sent out emails to lucky fans who received tickets in a ballot for the 2019 Cricket World Cup tournament, however, nearly 4,000 people were later informed the email was incorrect.

In order to buy tickets to the World Cup, cricket fans need to wait in a ballot process; after selecting different matches they’d like to attend, they are entered into a draw. An email titled “Cricket World Cup 2019 – confirmation of payment” was sent out on Friday to fans who were chosen in the draw, but it turns out not all the emails were sent to the correct people.

“We understand a number of CWC19 ticketing emails were sent out this morning in error,” Cricket World Cup officials said in a statement. “Ticketmaster will contact any affected customers directly. We apologise for any inconvenience or confusion caused.”

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While Ticketmaster and the World Cup apologized for their error, fans have begun to lash out in anger and confusion online. People are requesting that Ticketmaster considers giving these tickets out to the people who received the incorrect emails; some even booked travel and accommodations already.

According to BBC, money has not been taken from those affected. Out of the 2.7 million tickets that have been applied for, 450,000 were sold of the 800,000 available. Ticketmaster has not issued any information regarding potential refunds of tickets for those that received the false email.

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The Cricket World Cup will take place in England and Wales from May 30 to July 14, 2019.