SingTel Prepaid Card - User Guide Overview

There's so much more you might want to know about the prepaid service and how it works. Here's a quick look and later you can visit the actual site for more. The link is below.

How to use the card (activation)
When you first buy your SingTel prepaid hi card, you need to dial the toll-free IVR (interactive voice response) at 96767777. This will activate your line. If you are overseas, you should dial *130#. Remember this difference as roaming charges will apply if you try to call to activate your hi card.

To re-cap
in Singapore - dial 96767777
overseas - dial *130#

Check account balance
in Singapore - dial 96767777 (toll-free)
overseas - dial *133# (This allows you to check your balance for free even while roaming)

Setting up MMS (Multi-media Message Service)
dial *IDEAS (or *43327). You will receive an SMS which you should reply with your handset model to receive the MMS settings to install.

You can visit the actual SingTel Prepaid site for miscellaneous parts which I'm skipping, for e.g.
how to activate or deactivate supplementary services such as call forwarding etc

Enjoy reading! =)