Rachel Allan two-piece brand new no alterations

I just got this prom dress but I want something different!! I only tried it on once and that’s all it still has the tags on it too!! I’m asking about $500 and it’s brand new also has slits on the bottom layer it’s very comfy also :) it’s a size 4 but can also fit a size 6!! I also have a pair of heels that go perfectly with them they are a size 8!! :)