Pretty black dress with white polka dots

Pretty black with white polka dots maxi dress. Back zip, 3/4 sleeves. The front boasts a square neckline and 2 rows of three white buttons that meet up with pleats on both the top and bottom. The back of the dress has a saucy six smaller white buttons running horizontally just below the waistline with pleating going downward highlighting a shapely bum. 57% acetate 43% rayon. Dry clean.