Punters who have bought tickets to some of this year's big name concerts at Forsyth Barr worry they might have spent hundreds of dollars on a scam.
There have already been issues with tickets bought through controversial ticket resale market website Viagogo this year for concerts at the stadium this year.
Some people who had bought tickets to Robbie Williams concert through the website found their tickets were not valid when they tried to enter the stadium last Saturday night.
Many of the invalid tickets had the same person's name on them and had been purchased for hundreds of dollars above their original price.