Hello! I would like to ask if this has been authenticated already?
No, I haven't. You didn't provide a link, or login shot (see
here) and I also didn't have all the required pictures for authentication.
I can comment on a few things, though, which could be helpful to you.
The sides of the bag looking asymmetrical could be because of the way it was stored, or folded. You can easily reshape that fold. Also, if you push out both upper sides of the bag it probably will look much better. Once this bag has been used more, I believe the shape/sides will loosen up. Loose lining occurs in authentic bags also, so not always an authenticity issue.
I've see this bag in last year's collection (not 100% sure of the season, Cruise, or Spring), but I'm not certain if it has been re-issued this year. Bag is called the (quilted) Easy Shopping Tote.
If you need an authentication, resubmit your request with all required pictures and a link, or login shot.