"He scanned my ticket using the Lotto NZ App, and said 'Major Prize winner' appeared on screen the screen. I didn't want to get too ahead of myself, so I said to him, 'Hang on a second – read me the numbers and I'll check the ticket manually just to be sure'," she said.
After her husband wrote the winning numbers down on a piece of paper, the woman soon had it confirmed she had a winner.
"Seeing the numbers all lined up in a row was such a surreal feeling. My husband and I were in complete disbelief," the woman said.
She went back to the supermarket with her ticket to claim the prize.
She said she and her husband are looking forward to paying off their mortgage and having some money left over to enjoy.
The winning Lotto First Division ticket was sold at Countdown Victoria Ave in Whanganui for the draw on Saturday 23 October.