So I mounted the holder on the glass pane of my scooter while I was still waiting for an answer from Yayago.
After a few days, however, on the way to work, the holder sparked unsigned from the disc. My Samsung Galaxy still hung on the speaker cables while the bracket is laid on the asphalt.
Very frightened I stopped immediately and saved my phone. The holder had already been destroyed by the driver behind.
This had two consequences:
On the one hand Yayago declared as a lack not (holder dissolves despite its intended use and ordinary assembly) jurisdiction. And who has no holder needs the pad no longer or a response to the RFI suppression of the charging cable.
On the other hand I turned, as recommended by Yayago, the manufacturer of Herbert Richter to possibly obtain an explanation there.
Here I am waiting for an answer for two weeks.
I have no recommendation here. Knowledge already: Each product and each service is as good as the people behind it!