Treehouse 21318 seal tag does NOT have code

[lego2lego]

I bought lego treehouse 21318 from amazon, sold & shipped. Was excited on its arrival, but noticed that the seal tag does NOT have any code.  Is this normal? The box is good condition, have a crease on on side. Should I be of concern of the no seal code and box condition? Enclosed is pic of the seal tag.

[Alpinemaps]

I’m looking at the one I got from LEGO Shop at Home and it has a production code. And the Piece Count Sticker. Check the other side to see if it has the code.