The Better Business Bureau says it is getting more calls from people who are getting mysterious packages they didn't order.
It can be a anything from electronics to beauty products or even fake designer goods.
The BBB says there are third-party sellers on popular websites sending items.
They want to make it appear that you wrote a glowing online review of their merchandise and that you are a verified buyer. That gets the company more sales.
If this happens to you, tell the online retailer that a third-party vendor sent you the items.
This also means scammers already have your personal information, so you may want to change passwords or sign up for a credit monitoring service.
The good news? The Federal Trade Commission says you can legally keep the item if you want it!