Apple tv

To start a subscription through Apple, you will need a payment method that can be charged periodically and automatically, such as a credit card. Depending on where you are, that may need to be authorized to work internationally (e.g., for Europe, payments are made to Apple Ireland). Contact your financial institution for possibilities.

Payment methods that you can use with your Apple ID - Apple Support

Change, add, or remove Apple ID payment methods - Apple Support

If your payment method is declined in the App Store or iTunes Store - Apple Support

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Alternatively, you can add funds to your Apple account, to be used for digital purchases and subscriptions. You you add money from bank transfer or gift cards.

Add money to your Apple ID balance - Apple Support

Check your Apple ID balance - Apple Support

What type of gift card do I have? - Apple Support

Redeem your Apple Gift Card - Apple Support

Apple Gift Card - Apple ($10 or more; store-bought, mail, of email)

To start a subscription using Apple ID balance as payment method, you will need to have at least the amount of one billing cycle. Your subscription may lapse if insufficient funds are available on the due day. Top-up in time if you wish to continue after the trial.