For instance on Feb 2023, you have subscribed to a Prime 4G plan which entitles you a base local data of 80GB plus an additional bonus 20GB per month for a period of 12 months.

By end of Feb 2023, you used 30GB of Data (20GB on bonus local data & 10GB of Base local data), leaving you with an unused 70GB base data. All 70GB base data shall roll over to next month.

This means that in Mar 2023, you will have a total of 170GB of local data (80GB base data + 20GB Bonus data + 70B rollover data).

Do remember at any point of time, only unused base data is rollable to next 1-month.

(Updated 27 Jun 2024)

There are 4 available plans that allow unused base data is roll over to next 1-month.

✅ Super 5G comes with a 110GB rollable base data + Bonus 20GB local data. (Max data to rollover each month is capped at 110GB)
✅ Mega 5G comes with a 80GB rollable base data + Bonus 30GB local data. (Max data to rollover each month is capped at 80GB)
✅ Prime 4G comes with a 80GB rollable base data + Bonus 20GB local data. (Max data to rollover each month is capped at 80GB)
✅ Lite 4G comes with a 20GB rollable base data (Max data to rollover each month is capped at 20GB)

Unfortunately, it seems that the ability to rollover talktime and SMS is not currently available. However, it's great to hear that you will inform your customers when this feature becomes available