"We started working here in October. The last few months are very lucky for us," Ms Patel said.
Ms Patel said because of the shop's location on a busy Whangarei road, the customers are a combination of people driving past and regulars.
"It's hard to say if it will be a local or out-of-towner because it's a holiday season. We've had a lot of people coming in and checking, more than usual.
They come in and say 'hopefully I am a winner' and when they're not a winner they say 'oh you didn't sell me the winning ticket," she said.
Two Lotto players from Central Otago and Rotorua also won $333,333 in Lotto First Division in Saturday's draw.
The recent win in Northland continues the winning streak of more than $10.1m in first and second division prizes in the region since August 20 last year.
* The winning Lotto numbers were 01, 02, 11, 31, 32, 38 with bonus ball 27 and Powerball 05.