First, the commission is for the account manager. The commission and handling fee understood by the public are actually the same meaning. You can talk to the account manager about the handling fee. Every company is different, even the same company is different. The key depends on your account manager.
Secondly, there is no transfer fees, stamp duty and communication fee for stock index futures. The handling fee is charged bilaterally. All transaction costs are just a handling fee, which is different from stocks.