Botox Treatment from This Doctor Ruined my Whole Year!

I consider the day ,worst day, when I went to get botox done from Sach Mohan. I don't know how on earth he injected my face, what technique he used. Straight after the treatment, I had an acid/stream like feeling - that ran from the brow point down one side of my face. He also injected too much product and I was left with severe ptosis (droopy eyelid) which lasted more than 3 months. (I'd like to mention, I was a user of botox for a long time prior to my treatment with him and never once i had any issues with).
He refuse to admit that it was his fault, he never came on the phone or replied to my emails. I was told by one of his staff, that my face anatomy doesn't suit botox. Why she was telling me this after my treatment; I do not know! He never once came on the phone to apologies or help me understand what on earth was going on with my face and sadly I was left alone to deal with the horrendous pain I was in every single day (from dusk to dawn excoriation amount of pain). I have emails backing this all. Do not go to this doctor. Doctors like these have no right to hold needle and inject people's face's because its not just face's they are ruining. He ruined my confidence and I became a ball of anxiety dealing with this pain on my own!