BCBG Josephine Colorblock Drape Mini Dress

I love the dress, but it doesn't close around my bust. I got a size 6, and have a bigger/broader chest. This was final sale. Here is the dress. I would re-buy it in a bigger size except it's final sale and I don't want to have to sell it again if it doesn't fit. Note, it came directly from BCBG folded up which is why the front satin is slightly creased. https://bcbg.com/products/bcbgmaxazria-josephine-mini-dress-mv01d26e-snn?variant=41901042958496?glCountry=US&glCurrency=USD&gclid=CjwKCAjw4ZWkBhA4EiwAVJXwqRNY0yXHQze_4iPVt7I9KMFPPvWbyNJhp1mqkWLiEMx_fpEI9mWtLxoCtrEQAvD_BwE