Hi, if you wanted to check Mobilink account balance free of cost, then read below..
You can check mobilink account balance totally free instead of giving away 10+taxt/Balance Check..
To check fre balance simply dial 121 from your Mobilink account and listten to the voice..
The first thing that will be announced is your account balance..
If you don't believe then empty your account and leave 0 rupees in it, then dial the number and listen to it.. :)
Enjoy Mobilink tricks!!