It has a lot to do with the thickness of it also known as pile , you will also notice vacuum marks too , if I were you I'd call the store and inquire on the carpet you purchased
This page is a forum where ordinary people may answer your questions. I suggest that you address this question to store personnel. Without knowing more about the product you purchased, it is unlikely that ordinary people will be in a position to provide meaningful and relevant answers. I suggest that you post a review if you wish to comment about the quality of the products or service provided by the store.
Thanks! Your answer is awaiting moderation.