Ketan Patel thought it was a joke when a customer told him he had sold a winning $5.5m Lotto ticket but when he found out it was true it was an "exciting" moment.
Mr Patel and his wife Sejai, who own the Sunnyside Foodmarket in Kamo, Whangarei, have sold a few winning tickets before. In July he sold a ticket which won $27,000 in second division and a ticket which won $9000 in Strike.
But a ticket which won $5.5m in Lotto's Powerball First Division on Wednesday night has topped this.
"We found out this morning, I was told by one of my customers that I have sold the Powerball ticket. I didn't believe it at first but as soon as I logged into the Lotto terminal I was so excited," Mr Patel said yesterday.
Mr Patel has owned the store for 13 years and said Lotto ticket sales were a bit quiet after a young couple from the Hibiscus Coast in Auckland won $44m with Powerball First Division last Wednesday.