Das war die Antwort von Trezor:
Hi Roc,
I see you used Bitcoin 3-address for your transfer, that's very unfortunate.
Unfortunately, since you used SegWit BTC address for your transfer, your funds cannot be recovered our help (because Bitcoin Cash network has not activated SegWit).
We can't help you in this matter, but there are some miners who specialize in such situations and are able to recover it. Since we don't know how reliable they are, we don't recommend anyone particular.
If you try to use their services, please never provide them with sensitive data as your recovery seed (24 words generated during TREZOR setup), PIN or Passphrase, otherwise, you're risking more than losing Bitcoin Cash that was sent to BTC 3-address.