Hello again! I've gone off the deep end

Please help me authenticate this Stam I found for a super deal (if it's real!).
Item: Small Stam in Coral from 2010
Listing number: n/a
Seller: Emilie
Link:
https://www.finn.no/bap/forsale/ad.html?finnkode=115310577&fks=115310577
Comments: The heat stamp looks sloppy to me. I asked for a pic of the season tag and described where to find it and I got a pic of the hang tag instead (which I know can be easily faked). The seller said she got it from a friend that worked in the fashion biz and it was from MJ in New York. Wouldn't it have some kind of tag sewn inside, even if it was a sample bag?