To top up your SingTel hi card, you can choose from
1. BonuS$30 - Pay a face-value of S$15 to receive S$30 value
2. Hot$128 - Pay a face-value of S$28 to receive S$128 value. The S$128 is split into two accounts - one with a S$100 value for local calls and SMS; the second with a S$28 value for IDD calls and global SMS.
3. General prepaid top-up cards - with face values starting at $10, $15, $20, $25 and so on. These you might only find at SingTel stores and authorized dealers.
4. Payphone - Add S$2 only at any SingTel payphone. Just add 10 cents first to start a call and you see an option with "Easy Top-up" on the display screen. Press the button and follow the instructions.
Top-up hi-card steps
1. Just dial 9676-7777 (toll-free) on your mobile phone
2. Select option 2 .
3. Enter the 10-digit Card number on the back of your Top-Up Card, followed by
the "#" key.
4. Enter your 6-digit PIN (you need to scratch off the panel from the back),
followed by the "#" key.
