It sounds indeed like a really back flight back to London.

What we know is that if you enter more than about 2 sentences into the text box, you may have to wait in excess of 6 months to get a reply, with a significant risk that it will be closed on you again. What you may want to do is to articulate quite clearly what you would like BA to do - beyond an apology - and seek specifically that. So that's cash or Avios, realistically, maybe a space available upgrade.

If you have had no reply after 8 weeks you can go to CEDR to complain about being treated unfairly - both the slow customer relations process and not trying to put right the problems that you had. I would forget the side issues, and focus on no more than 2 components - which I think was the disturbance caused by bringing up WT passengers, and the dropped divider. The latter can crash down if the glass is wobbled too much, so I think that's what happened there, your finger and the aircraft vibrations working against each other to make the divider fall off the inner ledge. Some of the minor items clearly added to the event but I think ti's better to focus rather than spread.