deduction of main balance

Location/place: jabalpur madhya pradesh

Name of company/service: airtel

There’s a frequent deduction of main balance from my airtel no. 7898391049. The amount of 75 rupees have been deducted while surfing on the internet despite of having a net pack. And while complaining to a customer care executive instead of helping he misbehaved n disconnected the call and again an amount of 3 rupees was deducted.