Harassment and a lack of care from management - Sales Associate bei Insa: Mitarbeiterbewertung

Management never took my claims of harassment seriously and unceremoniously fired me with no notice, when I told them I was going to HR about the issue. I spoke to 3 leads who spoke to management, but nothing was done. They also refused to be flexible with my schedule despite that being part of the incentives to work there on their website. Despite being told that I wouldn't be fired for an excused absence, the reason I was given was that it was unexcused (I went to see a doctor about my anxiety around being harassed at work) I was removed from the system the next day and not alerted to my termination until the end of the week. I was told they would do an "internal investigation" but the person who harassed me is still working there.