The Wainoni Pak'n Save in Christchurch has sold a million dollar Lotto ticket for the second time in a week.
Two people won $3.8 million each in tonight's Powerball draw, at the Avondale Foodmarket in Auckland and the other at the Christchurch shop.
Another customer won $1m in Wednesday night's First Division draw with a ticket bought from the supermarket.
A Wainoni Pak'n Save supervisor said they were just getting over selling the first ticket when they found out about the second win.
"It's amazing, can't believe it," she said. "There's a real buzz here tonight."