The promoter for Six60's Dunedin gig over the weekend blamed Viagogo after 200 hopeful concertgoers were turned away with fraudulent tickets.
However, the controversial ticket seller has refunded a handful of those turned away but the other 170-odd will not be getting a helping hand.
In a statement, Viagogo said 28 people with cancelled tickets were fully refunded, but data from event organisers show others will be less lucky.
"Viagogo was made aware of events ... where stolen credit cards were used to purchase tickets on the primary market and then resold on various resell platforms," it said.
"It appears that many people used alternative resale channels that do not have Viagogo's consumer protection guarantees and will sadly be without tickets and without any financial relief."
About 200 concertgoers were refused entry to the Six60 concert at Forsyth Barr Stadium on Saturday night when they tried to enter with "fraudulent tickets".
Eccles Entertainment promoter Dave Munro believed the vast majority of the fake tickets presented at the gates were obtained from Viagogo, the controversial reselling website.
It was upsetting for both fans and the organisers, he said.
"This is incredibly disappointing and something that no one wants to see happen."
He said those affected were not prevented from attending the concert. Instead, they were given an opportunity to buy legitimate tickets at the gate.
"We've been pushing the message really hard that people need to only buy from the official ticket seller, Ticketmaster.
"Because there were still legitimate tickets available, there was absolutely no need for people to pay an inflated price, let alone go to an online scalper.
"It's a really unfortunate problem and people need to be really careful when they're purchasing tickets that they make sure they're buying from the official ticketing agent."
Viagogo is working to identify the fraudsters selling inadequate tickets and is willing to work with event organisers to prevent it from happening in the future.
"[We] are willing to work with Ticketmaster or the event organisers to stop this criminal activity from happening again," the statement said.
"There is no incentive for sellers to sell fraudulent tickets on our website because Viagogo does not pay a seller until a buyer successfully attends an event.
"This unique condition is one of the many reasons our platform is secure and safe for consumers."
In the interim, Viagogo has been and will continue to reach out to all of their buyers over the issues, it said, claiming the "overwhelming majority" gained access to Six60 without a hitch.