Most Dunn Bros transactions process immediately. You'll receive an e-mail receipt within a few minutes of your transaction detailing your purchase. If you have push notifications enabled, you'll receive a notification right after you use your app to pay.
It normally takes banks 24-48 hours to process transactions, so your Dunn Bros charges may appear a day or two after your meal. To match up these transactions, refer to your Transaction History, accessible through your settings.
To help save on processing fees, sometimes we bundle transactions from the same week into one charge. The money we save gets passed back to you as rewards, so it's a win-win. When we charge your card, you'll receive a "Your card has been charged..." e-mail, which will detail which charges are contained in the bundle.