You should expect reward payments to hit your wallet on Mondays. Once you receive it, you will be able to see it by tapping on the "Total balance" or "Total earnings" buttons on the app.
It is very important to remember that, even though it is done on Monday, there is no set time for the payment to be done. That means that at any time during the day - could be 10am, 2pm or 7pm - you will receive it. You just have to be patient and sometimes wait for the end of the day.
If by Tuesday you still haven't received your reward payment, that's when you need to contact our support team at email@example.com. We will help you find what is the reason for the delay and make sure you get those rewards in your wallet!