Individual credit purchase agreement
個別信用購入あっせん契約 kobetsu shinyō kōnyū assen keiyaku
A credit agreement in which a finance provider pays the seller for a specific phone purchase and the customer repays the provider in installments.
This is legally separate from the mobile communications contract even when both charges appear on the same bill. Cancelling or porting the phone line normally does not erase the remaining device balance.
Read the total cash price, number and amount of payments, fees, payment dates, late-payment handling, ownership or return-program conditions, and the clauses on credit-information use and registration before agreeing.
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Related guides
Cancellation / early-termination fee契約解除料／解約料keiyaku kaijo-ryō / kaiyaku-ryō
A charge that may apply when a newly opened line is cancelled within a defined period (often 12 months). Rules differ by plan and contract start date; device installments, options and same-month cancellation charges are separate.
Carrier emailキャリアメールkyaria mēru
An email address given by a mobile carrier, such as @docomo.ne.jp, @au.com / @ezweb.ne.jp or @softbank.ne.jp.
Contract change契約変更keiyaku henkō
A broad term for changing the details of an existing contract — plan, options, name, or payment method.
Device upgrade機種変更kishu henkō
Getting a new device while staying with your carrier and keeping your number.
Electricity re-energization / saiten再点saiten
Making electricity usable again at a supply point that was stopped, normally as part of a new move-in contract.