Deerfold
Chimes exactly with my experience. I was on the 1000 LM from Northampton to Birmingham New St, got turfed at Birmingham International (the train manager having been EXCELLENT with information - credit to him) at approx 1115 to be greeted by a complete absence of either staff (except two in the ticket office) or information except semi-audible tannoy annoucements were saying tickets were valid on WM buses. They did NOT provide information on which buses actually went to Birmingham, from where or when! I asked at the ticket window and de facto found myself performing the role of information provider! I managed (just!) to get on a heaving 1130 bus. This was a normal service bus, which had already run to Birmingham Airport from Coventry and it seems operated at 30 min frequency on Sunday - NOTHING was apparently done to provide additional buses despite the fact the incident had been going on for two hours!
Not exactly the greatest experience and I was 30mins late for the football match I was going to (the name gives a big clue!)