The train stop is a short walk away through the thermal park to the Rogner Bad Blumau spa or to the town centre. You can buy train tickets on the train on departure from Bad Blumau using an appropriate machine. If there is no machine, you can buy your ticket directly from the conductor.
There are several connections daily in the direction of Graz (via Fürstenfeld, Fehring, Gleisdorf) or in the direction of Vienna (via Hartberg, St. Johann i.d. Haide). Timetable query: here
The ÖBB stop is freely accessible. No indoor area.