I left my bag on a train recently. I’m not sure I can describe “describe the bag using an online questionnaire that took about two minutes to complete” as Kafkaesque… bag returned in a little under one week.
Did you try contacting someone to get back sooner? That's what the people did in the cases I referenced - just people not answering the phones, dead lines, "computer says no”, passed around, refusal to help etc
I guess you being somewhat fine with waiting a week meant nothing important was in the bag.
The trouble with the UK is we continue to put up with the bar getting lower and lower each year. Honestly someone would defend it taking a month to get a bag back as being fine