Once you have achieved the Twitch affiliate or partner, an affiliate tab is added to your Twitch account. Here you need to add your payment information where you want to receive your payout. After submitting the payment method, Twitch will take 2 to 3 business days to review and verify the payment method. Keep in mind their review days are counted in business days, so if there is Saturday, Sunday, or any holiday in between it will not be counted.