You can also click Connect with Facebook to log in using your Facebook account. If logging in with Facebook, type your username and password and click Log In. When Twitch asks for permissions, click Allow.

If you’re automatically logged in click Confirm.

If you have a Prime membership, you will see a loading screen for a moment followed by a message confirming that you successfully linked your accounts. If you do not have a Prime subscription you will be taken to a checkout page asking you to sign up for Prime. Note that this will cost you money. After signing up you will have successfully linked your accounts.