Sky City might have to down the gambling chips after being referred to the regulator over a possible host responsibility breach.
The casino operator could have its licence suspended for up to 10 days, because of the amount of time one customer was able to spend gambling over a period of three and a half years.
The Department of Internal Affairs says it was in breach of Sky City's harm minimisation obligations.
The customer made a complaint after a gambling spree that lasted from August 2017 to February 2021.
It's now up to the Gambling Commission to decide whether or not to suspend SkyCity's licence.
Problem Gambling Foundation spokesperson Andree Froude speaks to Susana Lei'ataua.
