I’m really sorry this didn’t work out for you but not surprised. I’m cynical about the role of HR in organisations. This is why 10 years ago I didn’t report bullying I received from my manager, instead I left. At the time a few people told me I should have put in a complaint and maybe I wondered a little if I was being defeatist. I wouldn’t tell anyone what to do in that situation and you did the right thing by you. But yes, I’m not surprised by the outcome.