noun
negative option billing
A business practice where a customer is automatically charged for a service unless they explicitly cancel it. Often used in subscription models.
このサービスはネガティブオプションを採用しているため、解約しない限り毎月料金が発生します。
This service uses negative option billing, so you will be charged monthly unless you cancel.
Variant with a middle dot, sometimes used for clarity.
Borrowed from English 'negative option'.