To unlink Twitch from your Deep Silver Account, you need to follow a few steps.
Go to Account > Settings > Connections. Find Twitch and press Disconnect:
Deep Silver Account will require a confirmation from your side to unlink.
Click on Disconnect.
Your Twitch account is no longer linked to your Deep Silver Account.
If you are facing any issues, kindly reach out to our support team directly by clicking on the "Contact Support" button.