It’s really simple!
First, you will need to download the Flashfood app on IOS or Android: https://flashfood.com/?showgettheapp=true. You can click on "search nearby" to see if there are any stores available near you before creating your account. Once you see some locations, go ahead and create your account and start browsing.
You buy items directly from your phone, and head over to the store to pick up your order. Your items will be located in the Flashfood zone (it's usually near the customer service desk). Check with the customer service in-store on how to pick up your order as each store has its own process to ensure that you get what you ordered.
Once you've picked up your items or the store associate has handed them to you, they will mark the order as picked up to clear it from your pickup tab. And voila, you're done!