Please see below for detailed instructions.
Tap on "Payment" [お支払い].
Tap on "installment payment/lump-sum settlement" [分割支払契約の確認・一括清算] in the "Payment of charges" [料金のお支払い] section.
Select the mobile phone number you want to process and tap on "Select" [選択].
Enter the 4-digit PIN code you set at the time of the contract and tap on "Next" [次へ].
Please check the Terms and Conditions and tap on "Agree and proceed" [同意して手続きに進む].
The remaining payment amount will be displayed.
Select the device to be settled in a lump-sum and tap on "Next" [次へ].
After checking the information, tap on "Apply with this information" [この内容で申し込む].
The procedure is now completed.
Has your problem been solved?