Reading it in the original German, it appears that this refers to when a receipt is given, but does not seem to behold owners of ATMs, or the service providers, to provide a receipt from an automated transaction.
I am not a lawyer (or Anwalt, or Advisor, or Attorney), nothing in this post shall constitute advice, or advisement on legal interpretation leading to action. If you have concerns about the propriety of an interaction between yourself and a financial services provider I recommend that you consult with a financial advisor or attorney.
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Proxmox it and then install a bunch of Linux containers on it!