twitch

Step 1: You will provide basic, general information to be registered into the program.
Step 2: Sign the Twitch Affiliate Agreement, agreeing to the terms of the program.
Step 3: Provide Amazon your tax information by completing both the Royalty and Service Tax Interviews (TIMS).
Step 4: Tell us where to send your payments by completing the Tipalti form.

https://help.twitch.tv/customer/portal/articles/2785927-joining-the-affiliate-program