No pre-activation is needed. Simply ensure data roaming is switched on in your phone's settings. The $0.99 charge and 24-hour window begin only when data is first used abroad — so there's no risk of being charged while still in Singapore.

The 24-hour block starts the moment data roaming is first used in a foreign destination. For example, if you start at 3:00pm, it runs until 3:00pm the next day. It’s not based on calendar days, so there are no midnight cut-offs during your trip.

Yes. One $0.99 charge covers the full 24-hour window across any number of destinations. For example, if you use 1GB during a layover in Dubai and still have 12 hours remaining when you land in London, the remaining 2GB and 12 hours will continue to be available in London — at no extra charge.

When your 3GB is used up within the 24-hour window, another 3GB will automatically be activated at the same $0.99 rate. You will continue to stay connected without interruption.

The $0.99/day plan covers data roaming only. Standard international call and SMS rates apply separately. OTPs and app notifications that come via data-based apps (e.g. WhatsApp) are included within the 3GB block.

Turning data roaming off and on does not reset the 24-hour window. The original block continues from the time it first started. A new block and $0.99 charge only begins after the current 24-hour window has expired.