iPhoneのサブスクリプション決済エラー

Translated by google:

>>iPhone Subscription Payment Error

I am encountering errors with subscription payments on my iPhone, and a message indicates that credit card payments are temporarily unavailable. Although I registered a new card and removed the old one, the issue persists, and no outstanding payments are displayed.<<

Did you contact your banking institution about that?

In the meantime you could also use Apple Gift Cards to put money into your Apple Account balance, which will then be used to pay for your subscriptions and purchases from Apple.

What you can buy with your Apple Account balance - Apple Support

How to redeem your Apple Gift Card, App Store Card, or App Store & iTunes Gift Card - Apple Support

Did you know that there is also a Japanese speaking Apple Community?

You might get more answers in these forums from native speakers.

日本語を話すAppleコミュニティもあることをご存知ですか？

これらのフォーラムではネイティブ スピーカーからさらに多くの回答が得られるかもしれません。

公式 Apple サポートコミュニティ