Lenskart — Shades formed inside lens

Address:

92, 11th cross, 1st stage, Indiranagar, Bangalore

I bought lenses paying over Rs.8000/-. its been over a year. Now shades are forming insidd lense and cant see through the shades. causing eyes to pain if worn. It seems manufacturing defective or sub-standard quality if lenses for such a costly price. i want them be replaced immediately with good ones. please respond to me immediately.