Netflix billing through Apple is no longer available for most new or rejoining members.
Some Apple-billed members in select countries may be prompted to add a new payment method to continue their subscription. (Note: Netflix gift cards cannot be redeemed on these accounts. See below for more information.)
Note:Apple subscriptions renew automatically, and you may be charged up to 24 hours before each subscription period starts.
See Also
How to add or update a payment methodChange you Netflix Billing Date by Following these 3 Smart StepsCredit card payment rule change: Can you change credit card billing cycle, due date multiple times now? What RBI saysYou may lose access to your Netflix account if you’re paying through Apple | CNN Business