This post explains about warid Pakistan balance inquiry and the charges you have to pay for warid balance check.
Warid, like other cellular networks of Pakistan, provides it’s users to check their balance by dialing the code from their cell phone and sending the request for warid balance inquiry but it is not free though!
Warid balance check Code
To find out your current balance for warid Pakistan prepaid sim, dial *100# from your cell phone and click call, this will show you your current balance. This service is not free and the customer is charged every time he requests for balance report.
Fee charged for warid balance inquiry
0.12 rs is charged per enquiry through *100# (0.10 + 0.02tax)