In my country we use often ussd to check balance and change the package, for example if we want 1GB of data then revert it 500MB, we only need to call *123#. then there will appear menu selection to chose and we just need to reply based on the optional
given. but in wp7 it wont works except for only a statement such as "your balance is Rp 3000.."
Kindly OS developer to fix this issue.
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