Twitch Prime Support
Why Does My Card Show a Pending Charge from Amazon?
When signing up for Twitch Prime, we verify that your Prime payment instrument is valid.
A Pending charge or authorization displays while we confirm that your card is valid. This additional process is to protect your personal information and prevent fraud. Once your Twitch Prime sign-up is complete, the "pending charge" or "authorization" disappears within 10 business days.