My (adult) DD has asked for advice and I said I'd post for her. She and her friend moved into a flat in London at the end of July. The neighbours downstairs have two dch ( approx 18 months and 3yrs) that scream and shout from 5am until they all leave the house at 8.30am. Sometimes the parents are shouting too. It's driving both DD and her friend "insane". She says it's unreasonable noise, not just kids playing. DD works hard, is on her feet all day and then studying for a qualification. They've tried earplugs but the screaming still wakes them. Her friend wants to write a letter, but I wonder if they should knock and speak to them. What do you think? TIA