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If iTunes cannot process your purchase request, you can solve it by several ways. Here are some solutions in English:
1、Check your payment information: Make sure that your payment information is correct and up to date. If you are using a credit card, ensure that it is not expired and has sufficient funds.
2、Update your iTunes: Ensure that your iTunes is the latest version. If not, please update it to the latest version.
3、Restart your device: Sometimes, restarting your device can solve the problem.
4、Contact Apple support: If the problem persists, you can contact Apple support for further assistance. They can help you resolve the issue by providing specific guidance or suggesting additional solutions.
5、Try another network connection: If you are experiencing network issues, try switching to another network connection and see if that resolves the problem.
6、Check your account status: Ensure that your Apple account is not suspended or under review. If it is, you need to resolve the issues with your account first before making a purchase.
If none of these solutions work, you may need to seek more advanced help from a professional or Apple’s technical support team.