Im sorry to hear about your bag, always an unpleasant experience even if they didnt get anything.
Yes, that was the train my other half was on. He boarded at 18:19, then they announced it was fast to Clapham at 18:21 due to staff shortages and then presumably didnt make any more announcements. and changed the route. A run fast to Clapham or Streatham to avoid fines which are calculated only on late arrival at final destination is a cancellation. This company promised Vicky Foxcroft MP on 14 September, when challenged by another constituent over reliability and the presumed plot to cut all trains, that they would ensure that the two trains an hour are prioritised.
It seems their promises to an MP are worth as much as 20 plus years of "long term plans and investment of the inflation plus price rises" nonsense to their customers. It started bad after Connex in I think it was 2001, then got slightly better, then they cut the extremely valuable direct service to Charing Cross in the evenings and Sundays, then they cut service to London Bridge because of the overground not long after, then years of cancellations whilst London Bridge was redeveloped, then more excuses leading into Covid and less frequent and even less reliable services. The only thing that improves is their profits.
Always worth an email to Ellie too maybe. If we dont all say something then I fear the plot will become reality. It would be nice if the neighbouring MPs worked together. I heard back from a case worker this afternoon saying they had forwarded my questions to the department. I dont hold out much hope but feel I actually provided some opposition to Southern's long term plans at least