Lotto is urging people who live in the Auckland area and bought a ticket in the lead-up to Christmas to check their tickets immediately.
On Thursday, Lotto said in a statement that only two out of three Lotto NZ Christmas promotion winners have claimed their million-dollar prize.
"Lotto NZ is urging anyone who bought a Triple Dip in the lead-up to Christmas and who lives in the Auckland region to log in and check their tickets online, as they could be in for a very big surprise!"
The winners were drawn on New Year's Eve and won a massive $1 million each.
All three winners are based in Auckland and the two who have claimed their winnings said they were not expecting it.
"I woke up on Sunday morning and thought I'd check the tickets online. I simply couldn't believe my eyes when I saw that one of the winning promo ticket numbers matched the numbers on my ticket," one winner said.
The other winning ticket recipient said: "It's a wonderful surprise! I plan to use the money to help my family."
Lotto said Auckland has had a lucky winning streak for 2023. There have been several winners, including a $1 million winner from Karaka and someone winning the $23.5 million Powerball in Wednesday's draw.
