If you want to check your reward history, navigate via More > History > Bonuses > Bonus History.

Under active bonuses, you’ll be able to view the name of any current bonuses, the time and date it expires and the terms of the bonus by clicking the three dots/ellipsis.

Alternatively, the bonus history page displays bonuses you’ve been given previously and what happened to them. You’ll see that you either used the bonus or it expired. The time and date shown refers to the last bonus update.