In Advance Brokerage Product how the reversal amount is calculate?

Reversible advance fee is available up to the plan amount of the opted product.
Illustration of Reversal - Let's say you select a plan with Rs.1000 validity for 6 months and then generate a brokerage amount of Rs.800 within the validity period. 800 would be refunded to your account. If the brokerage generated was Rs.4000, then only the Rs.1000 amount is reversible as the maximum amount that can be reversed is the advance fee. The advance fee cannot be refunded if no brokerage is generated within the validity period.