Dress fit concerns

Hello, I picked my wedding dress up today and I am concerned that the cup sizes seem too small. I am wondering if the designer sent the wrong size perhaps? I know the salon ordered the dress in a size 14. It is a Maggie sottero dress and the size chart for the dress says a size 14 has a cup size of 41 inches. My current measurement is 41. They originally ordered up a size because my hip measurement was larger. The dress I tried on initially was a size 8 or 10 (can’t remember which). It did not close at all and was clipped on. I am attaching a picture of that because to me, the cup sizes on both of the dresses look the same, even tho my actual ordered dress is several sizes larger. I feel like I am spilling out of the dress and also like a lot of my chest area is showing and like maybe the torso is even too short on the dress. Is it possible that the wrong size was delivered? For reference I have lost 6 pounds between the first dress (store sample in blush with ivory overlay) and my actual dress which is all ivory. I am not sure what to do because I did leave the store today with my dress. When I mentioned my concerns about the cup size she said they could put a larger cup in at alterations next month, but I am still worried there is just not enough fabric to cover my chest. And I am reading online that it can be very difficult to increase the size of the bust. And I am not sure if I have any recourse if the wrong size was delivered because I did sign for and leave with my dress today. I will attach the store sample dress and my actual dress below.



Any advise or insight would be appreciated. The first pic is the store same le in size 8 or 10. And the last is my dress in what is supposed to be a 14. The cup sizes seem very small to me for a dress that is supposed to have a cup size that is my exact fit.