since when? last time never implement? i already used long time and never use data

Unifi Mobile's #BEBAS prepaid plan has maintained a policy requiring users to perform specific activities—such as reloading their account, purchasing add-ons, or making outgoing calls, SMS, or data usage—within a 90-day period to keep their SIM card active. This policy is outlined in the "Specific Terms: Unifi Mobile Service for Consumer" document, which was published approximately 6.4 years ago. citeturn0search1

Therefore, the 90-day active period requirement has been in place since at least that time. To avoid service termination, it's essential to ensure that one of the specified activities is performed within each 90-day window.