New contract
新規契約 shinki keiyaku
Signing up for a new line. You usually receive a new phone number.
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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.