You can find your invoice:
In your emails
Your invoice is attached to the confirmation email sent to you when your order payment was accepted.
Remember to check your spam folder in case it ended up there.
In your Decathlon account
You can access your invoice in your account once your order has been shipped/confirmed.
1: Log in to your account and click on “My purchase history.”
2: Click on “Online orders.” The most recent order is listed first.
3: You then have two options. Click on: “View details” to view your items or “PDF” to print the invoice.