Altuzarra silk feather blouse

silk button up feather print blouse as seen on Cristal on dynasty there is a water mark on left armpit and end of left sleeve. it is not a sweat stain, it is only on one side. was just dry cleaned, they tried to remove. small mark pictured on middle of back size 40 approximate us size 8 armpit to armpit 20.25" approximate length 27.5"