If your country accepts debit/credit cards as a payment method, it is important to note that the card must be an international debit/credit card. This means that the card can be charged from anywhere in the world without requiring any additional authentication, such as OTP or verification from an app.

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However, it is common for most banks to have measures in place to prevent fraud, which may include requiring additional authentication for international charges. Despite this, Google aims to charge your card as soon as you reach the billing threshold.

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To ensure that your card can be charged internationally without additional authentication, it is recommended to contact your bank. It is worth noting that Google does not accept many types of prepaid cards, one-time cards, or cards that are not issued by an authorized and regulated bank.


If you are entering the correct card/CVV number and have used your debit/credit card for other international transactions, but the system continues to prompt you to correct the card/CVV number, it indicates that your card may not be acceptable at this time or the system is unable to charge your card currently.


In such cases, your only option would be to try using another card, a credit card, or another payment method that is acceptable in your country.


For more information on the payment methods acceptable in your country, please visit the following link: https://support.google.com/google-ads/answer/2375433.