Pretty Little Thing peach bodycon dress v-neck

This dress is supper cute!! But I don’t have the chest for it. The hips fit perfect for size 00, but the chest area has too much room (I’m only 30A.. so it’s unflattering on me). There is a zipper in the back that reaches the top of the bum- you can see by looking closely at the back pictured. The front cannot be unbuttoned!! Feel free to ask for more details :)