You can check the device you are currently using, which was newly contracted or upgraded at an au dealer, through My au.
Please see below for detailed instructions.
Tap on "Device Information" [機種情報].
The number of months used will be displayed.
To check the remaining balance of your installment payments, tap on "Check Installment Contract and Lump-Sum Settlement" [分割支払契約の確認・一括清算].
If you have multiple phone numbers or contracts, select the phone number or contract with the installment contract.
The remaining balance will be displayed.
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