How can I separate my Twitch and Amazon accounts?

Moin I wanted to separate my Twitch account from my Amazon account because I want to make a new twitch channel and then connect it to my Amazon account. How can I now disconnect my Twitch acc from my Amazon account?

How to separate your Prime Gaming and Amazon accounts:

Navigate to https://gaming.amazon.com/links/twitch/manage?ref_=ya_d_l_twitch_acct.
Click Disconnect Account next to the Twitch account that you want to disconnect

It also says here again: https://www.amazon.de/...C3%B6chten.

Thank you!