Cabin crew kept the windows locked in the dimmed position beginning after takeoff, and up until final approach to London Heathrow.
She is a fearful flyer in turbulence, and asked flight attendants to let her open her window. She was told they would, but didn’t, and believes that window seat passengers should have control of the window. She’ll even choose planes with manual window shades in the future, so she doesn’t give up control of them to flight attendants. She was just too scared when turbulence hit.