A young Auckland woman won $11.5 million in Lotto's Powerball First Division on Saturday night.
The woman, who wishes to remain anonymous, said she and her sister sat screaming in the car when they confirmed the win.
She said she happened to get up early on Sunday morning and was waiting for the rest of her household to wake when she saw an email from Lotto telling her she had a prize to claim.
"All I could think was 'Surely not'. I kind of just brushed it off and went back to what I was doing", she said.
It wasn't until after breakfast when the woman finally decided to check her ticket.