An organiser behind the Lauren Southern and Stefan Molyneux event says "powerful forces" were behind the cancellation - and is threatening retaliation.
The event was due to be held at Auckland's Powerstation on Friday, but owner Peter Campbell told Newshub he cancelled the event shortly after it was revealed on social media they would be speaking there.
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Caolan Robertson, an agent for Ms Southern, told Newshub they could not find another event and it was all over.
"We can't fix the event in the next 24 hours, there's no other venues that are going to do it because of the massive pressure from the far-left in this country," he told Newshub.
And he's threatening retaliation against those who forced the cancellation of the event.
"We're going to go after the venue, we're going to go after the media, we're going to go after all the people who've decided to slander it," he told Newshub.
"It's basically the whole media in this country who have written hit pieces constantly saying that Lauren's racist and a white supremacist."
An email sent to ticketholders said refunds would be processed within two weeks.
The pair had announced they would be using the venue as their event in an email then posted to Twitter - which lead to widespread backlash.
"We want to thank you for the incredible understanding and patience you've shown as we've had to keep the location of the venue secret for as long as possible," the email read.
"We look forward to the day when venues aren't bullied for daring to be available and ideas right of Stalin are permitted equal rights to peaceful assembly."
Protesters had already threatened to hold a rally outside the event, and police were seen on Friday conducting a security sweep at the Powerstation.
Tamaki Anti-Fascist Action spokesperson Sima Brown-Davis said the pair are "not welcome in Aotearoa".
"We have no room for racism and that Auckland is a diverse city that honours the tangata whenua," she told The AM Show on Friday.
"He [Mr Campbell] said it's been so immense and so intense that he's just had to pull out," Mr Robertson says.
"He said its unprecedented the amount of pressure that he's been put under... he says he's had phone calls from people with very powerful resources behind them."
Mr Robertson says those with tickets will be taken care of.
"We're going to do everything we can to make sure that everyone's refunded," he told Newshub.
"We're not going to leave anyone out of pocket. Anyone who's bought a ticket... is going to be 100 percent refunded."
Newshub.
