They did mess up on sending me a 3XL when I needed a small but here's this... THEY WERE EASY TO RETURN! I emailed them right away when I noticed and they said to send the package back which did. I then emailed them again informing them that I returned the package which my shipping was only $7.79, and they responded to my email so quick! They just sent me out a new waist trainer once I informed them in the return package following the usps number for it. They've sent my new one right away without even receiving the wrong one first. I suggest emailing them. They are a great company I don't understand why everyone else has issues with them lol.