According to Jio customer care executive Jio won’t refund you for advance rental paid on taking a postpaid fiber connection even when you cancel it the next day. This policy change has happened for any cancellation done after 20th April 2023 even when you were promised pro-rata deduction while opting for a new postpaid connection before that. According terms and conditions cos can change policy anytime .
Previously Jio fiber use to refund people on pro rate basis with minimum of 1 month rental deduction , so if you used you connection for less than 30 days then 30days rental use to be deducted or if more than 30days then pro rata basis.
Jio is giving away free router and installation on payment of 6 month advance rental of any of it’s postpaid fiber connections. Recently Jio launched its 199 backup plan which is only for new customers. Maybe Jio wants to lower the cancellation of existing fiber users who would cancel and opt for this backup connection.
Airtel on the other hand still refund user on pro rata basis for any advance rental fiber broadband plans.