DBVST
From 33C3_Public_Wiki
Direct debit
I called today for a ticket, and it appears that for direct debit (Lastschrift) you need to register online (MeineBahn) for a direct debit validation, even when ordering via Event-Hotline.
The direct debit validation takes a couple of days when done via post, or instantly with electronic Personalausweis eID. Maybe this might also enable direct debit via the Event-Ticket web page, but I am still waiting for the validation code to arrive :-)
-- Yayachiken (talk) 10:37, 8 December 2016 (CET)