Lotto has some simple advice for the winner of the sixth-biggest prize in its history - write your name and details on the winning ticket before you do anything else.
A Powerball player with a ticket sold in Auckland scooped Saturday night's $26.2 million jackpot.
The winning ticket, sold at Willy Wonka in Westfield Downtown, will be worth $26,061,898 from Powerball first division and $200,000 from Lotto first division.
But Lotto spokeswoman Kirsten McConchie said Powerball's first winner of 2014 had not come forward by last night.
She urged the winner to write their name, address and phone number on the ticket to make it "secure".