Hi, I'm John! I will help you with this.
First, please make sure you’re signed in with the correct Microsoft account. You can also try opening a new browser tab, using Incognito/InPrivate mode, or signing in on another device to rule out any sign-in issues.
If the problem still happens, please check your Rewards order history here: https://rewards.bing.com/redeem/orderhistory This will show if any points were redeemed, possibly without your permission.
Let me know what you find, and we can continue from there.
Click "Add comment" to let me know.