commission rate bnb 10% discount

I got commission fee of btcusdt(futures) using /fapi/v1/commissionRate and found that the 10% discount i got from binance for using bnb to pay for fee isnt applied and shows 0.02% and 0.04%. Is there a way to get whether im getting discount or not?

You can manually calculate the commission charged per trade using the Account Trade endpoint.