Yeah, totally looks like a storage mark. I had something similar on one of my bags. Try stuffing it out. Fill that part with bubble inserts or a lot of paper (folded, not crinkled to avoid further wrinkles) and press against the marks on the inside. That should help release the indentation.
Or if it really bothers you, go exchange it. A brand new bag should be a joy, not a problem, you know?
Do keep in mind though, that this bag is very prone to getting wrinkles in time. Most of them do. Many even come with wrinkles and marks from the stores. I’ve seen it happen many times. I personally returned a total of 4 Marmonts because of this.
“A brand new bag should be a joy, not a problem”
Very well said! @WillWordForBags
Will give it a try to exchange it today.. I hope It goes well.. Sometimes exchange experiences are not so great as how SA treat you when you purchase these bags.
These shouldn’t be a norm..

Perhaps Im just overthinking.. XD
Thank you dear!!