I've often wondered if the nonsense perpetuated on some pages of the National Rail Timetable about there being 'high level' and 'low level' at places such as Smethwick Galton Bridge and Tamworth might lead some unfamiliar passengers or people who don't use trains much to think there's two separate stations at each. It is, of course, no different from using a footbridge to change platforms at any other station, so why these archaic references are in the NRT is baffling.
Having said that, SGB is spread over quite a height between the Stour Valley and Snow Hill lines and the booking hall/exit level. And this is a station where ticket office hours are likely to be slashed and therefore lifts may not always be available....