About a year ago, a pregnant woman and her daughter moved into the flat just below mine. The woman has a boyfriend who visits on a regular basis and often, during his stays, they have explosive arguments where he screams the flat down and threatens to beat her up. I once stood by the door and listened to all the things he called her, right in front of her little daughters, who cried and screamed. I heard a bang and I could have sworn he either threw something big at the wall or threw the woman against the wall. I was crying and shaking, and I called the police. The police came and she told them 'they only had a fight' and sent them away. These 'fights' happen at least once every 2-3 weeks.
On top of that, they smoke weed in the flat. I absolutely hate the smell of weed and can currently smell it in my bedroom and kitchen. I have complained to my landlord and EA but nothing has changed. Can someone give me any advice on what to do, please?