Unable to purchase TikTok coins with Apple Account

How apps, content, and subscriptions from Apple are billed - Apple Support

Apple Gift Card and Apple Account balance can't be used for some purchases

• You can't use your Apple Account balance to send gifts or gift cards.

• For some recurring charges, like AppleCare+, you can't start your subscription with Apple Account balance. But as long as you keep another valid payment method on file and your Apple Account balance would cover an entire charge, your recurring charge will pull from your Apple Account balance.*

• Some subscriptions might not be charged to your Apple Account balance.

• If you use Family Sharing, your family members can't spend your Apple Account balance. Funds that you add to your Apple Account balance are available only to you. Learn more about how purchases bill to your Apple Account balance.

• Some purchases might require that you have a credit card on file, even if you use your Apple Account balance to make the purchase.

Read this document about how to view your current payment types and add Apple Account payment methods on an Apple mobile device, a Mac, or a PC --> Add a payment method to your Apple Account - Apple Support

If an item appears in red then it is no longer working and you either need to replace it or get it working again. Apple may require the presence of a valid payment method such as a card, even if an app is free. You won't be charged but the card has to be there and in working order.

If you can't add a payment method, check Add a payment method to your Apple Account - Apple Support , or this one about what to do if your payment method is declined in the App Store or iTunes Store —> If your payment method is declined in the App Store or iTunes Store - Apple Support

- Based on the information you enter, Apple is checking with your financial institution if the payment method is valid. Apple is receiving a negative, or no, response. Make sure the name and address are entered exactly as it appears on your financial institution bills and that the 3 digit CVV is correct. Check with your financial institution about the status of your card. “If you want to know why a debit card, credit card, or other payment method was declined, speak with your financial institution. Apple doesn't have information about why the payment method was declined.”

- Make sure your payment method is up to date or to try a different one ( If you need to change or update your Apple Account payment method - Apple Support ).

- Make sure this is one of the payment methods that you can use with your account, as listed in this support article: Payment methods that you can use with your Apple Account - Apple Support .

・Unfortunately the payment methods list is somewhat general and does not include individual brands of cards (I guess there are too many and are constantly changing). This thread is an example of where a person was not using an acceptable kind —> Why are my cards not supported on the MFI… - Apple Community Prepaid cards are not true credit cards.

・Also read any footnotes in the document.

・If you are trying to use a payment method from another country you may encounter problems. Apple’s statements to me are unclear. In If your payment method is declined in the App Store or iTunes Store - Apple Support Apple implies international payment types can be used when it says, "You might need to ask your financial institution to allow international purchases on your debit or credit card". Apple then counters this in Add a payment method to your Apple Account - Apple Support with, “If you're using an accepted payment method but your Apple Account is set to a different country or region, change your country or region.” Usually it is easiest to just use a card from the same country as your Apple Account setting.

・Finally, note that the document only says which methods _are_ acceptable. Apparently certain types (usually a credit or debit card) _must_ also be present under certain situations such as when a subscription is involved.

If you still have problems, contact official Apple Support. Click here --> Choose your country or region - Official Apple Support Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.

or:

See a list of Apple phone numbers around the world, in this article --> Contact Apple for support and service - Apple Support

If you're in India, click on this link to read an April 2022 notice 'About billing for Apple subscriptions and media products in India' --> About billing for Apple subscriptions and media products in India - Apple Support

Additional verification that may be required when making purchases in Europe --> About billing and purchases in Europe - Apple Support