Deep V Neck Puffy Sleeve Dress

My chest (36D) is too big for how deep the V is on this dress and it's past the return window. Deep V-Neck; Puff Short Sleeve; High-Waist; Tiered; Midi; Polyester; Stretch; Zipper-back; Lined; Unbranded; Stretch Fabric; Dress in Solid White. Size Medium (Site says it fits 8-10; I included the size range with measurements in photos)