Had a chin reduction. On surgery day, my PS decided I needed chin lipo and did it at no addl cost. I’m slim & didn’t need it but agreed, thinking it was low risk. Now I’m left permanently disfigured at 25yo as too much fat was removed. My platysma bands & submandibular glands are exposed, have abnormal hollowing, and MMN damaged. Was not given a consent form/made aware of any of the risks. Had I known, I would’ve never agreed. PS is being dismissive/uncooperative. What should I do? Legal action?