How to know the internet data balance of the SIM card which is inserted in Quectel BG96 modem?

Hi,

Iam using Quectel BG96 modem and I unsert the airtel 4G sim ,we are following Q BG96 modem AT commands manual v2.3, in that it shows USSD commands, so I want to know the internet data balance or SMS balance & its validity so I tried USSD AT commads but I got error always so Anyone help me to solve this issue.

Best regards,
Apex