You can complete the procedure for charging using au easy payment from the au PAY app.
Launch the au PAY app.
Tap on "Charge" [チャージ].
Enter your au ID password and tap on [OK].
Tap on "au Easy Payment" [auかんたん決済].
Enter the amount you want to charge or add the amount to be charged, then tap on "Charge" [チャージする].
Tap on "Read Membership Terms and Conditions (required reading) " [会員規約を読む(必読)] to review them, and then tap on "Agree" [同意する].
Enter the 4-digit PIN code and tap on Pay [支払う].
The charge is now complete.
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