It's a delivery man

You opened the door and see there's a delivery man in the front door and he's holding a package from your address.

"Package for you, man." he said as he gives you a package.

"Really?" you asked strangely. "I didn't order anything."

"Well, whatever, I just doing my job so can you as least take it, it's from someone who gives it to you." he replied.

"Alright, thank." you said as you take the package and sign it.

"Well, have a great day, man." he said as he left and you close the front door and look at the package. Who sent it to you, and there's no name on it.

Then, you take the box, went to your room, and then open it and you see...