This evening there was a 'Track Circuit Failure' in the Willesden Green area, affecting all Chiltern Railways' trains out of London Marylebone. It affected services from 18:00.
I travel to Buckinghamshire, to a little country station in the middle of nowhere. The various combinations of subsequent cancellations and early terminations conspired together to mean that my destination temporarily disappeared out of the psyche of Chiltern Railways. That and an alleged ban on the use of Special Stop Orders meant that I got home 75 minutes later than I should have done.
One Customer Charter Refund request on the way.
The problem is now fixed.