The winner of the country's sixth-biggest Lotto prize has yet to claim the prize, three days after the $26.2 million jackpot was struck.
The store where the ticket was sold - Willy Wonka in Downtown Shopping Centre, Auckland - has been outfitted with promotional material by Lotto in a bid to find the lucky ticket holder.
Stores that sold winning tickets were normally given a special stand which would include the actual winning ticket - so potential punters could see what a winner looked like.
"Obviously the winner hasn't come forward yet though so we don't have the actual ticket, so we've got a placeholder in there just asking customers, 'Do you have a ticket? Is it yours? Check your ticket'," spokeswoman Emilia Mazur said.
She said it was normal for winners to wait a few days before coming forward.