Top Up channels
Fast Refill Top Up
Press * 120 * 16-digit PIN#
IVR Top Up
1. Scratch off the scratch panel on the back of your top up card to reveal PIN.
2. Press *120 (toll free)
3. Wait for the voice prompt to enter 13-digit top up card PIN.
If you fail to press the right PIN more than 12 times, your number will be barred temporarily. Please contact AIS Call Center at 1175.