How to redeem Vietnamobile (VN)

1. Vietnamobile cards are used for Vietnamobile subcribers, mobile phone start with (+84) 092, 056, 058
2. In case of user using prepaid account: At the calling interface, write the syntax: *100*card code#OK and then press the call button to top up.
3. To check account balance: press *101#OK at calling interface.