You can easily find the history of your redeemed reward points in two ways:
On the website: Visit the Points History page at the Decathlon Membership portal and log in to your account to view all your reward point transactions.
In the Decathlon app: Go to the 'My Account' section and tap on 'Points History' within the Membership Program section to see your detailed points activity.
This will show you a complete record of your points earned and redeemed.