Flipkart — Order received was different and there is no option for refund or return

I had ordered a tempered glass cover for My mobile . I had received the item but the order delivered was different from the one I had ordered. I tried contacting Flipkart customer care, but they said there is no return policy on the item, though it was clearly said it can be returned if found defective. I would like a refund for the item. Order ID[protected].