Hayley Paige Lulu Gown Preppy unclassified dresses

I recently purchased this dress, but then changed my mind and purchased another dress elsewhere. I literally picked it up from the bridal salon this week, it has never been worn or altered. It is a beautiful gown, I just decided to go in a different direction for my dress! This is the Lulu ball gown from her Spring 2018 Blush collection. My normal street size is a 4-6...this fits like a 6-8 even though it’s technically a 12 by the designer. I was between a 10-12, so they ordered me a size up.