Whether you are changing your payment method to a credit card, or changing from one credit card to another, you can make these changes through My au or My UQ mobile.
Access the Change Method of Payment [支払方法の変更] page.
Enter your au ID and password.
Select the service you wish to process and tap on “Select”[選択] .
After check when the change will take effect and read the important notes, tap on "Credit Card" [クレジットカード].
Read the important notes and tap on “Next”[次へ]at the bottom of the screen.
Enter your credit card information and tap on "Next" [次へ].
Check the registration content, select the confirmation method after registration and tap on "Set" [設定する].
You may be redirected to the card company's website for authentication service (3D Secure).
In such cases, follow the on-screen instructions and enter the password registered with the credit card company, or a one-time password and tap "Send" [送信].
The procedure is completed when you are redirected to the "Application Completed " [受付完了] screen.
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