Split Neck Ruffle Sleeve Top

I want to like this too. It’s such a cute fabric that goes with jeans well, BUT, it has a really huge neck. Huge, falls off my shoulders. I started with a size XL as in this brand I sometimes take that size. It was huge, not too long, but way wide. So I ordered a medium, still too big in the neck and wide bodice. Then I went in to the store and saw a size small available so I grabbed that and took it to try. So the small fits perfectly except now the length is too short. So, I guess I struck out on this top. I forgot to mention another sort of odd thing about it is from the side view it does something weird in the upper back area that creates the look of a “hunchback “ and that was true in all the sizes. Can’t figure this out??