The RM1 was a special plan with unlimited daily allowance with renewal. If you allowed it to auto renew daily it would cost just RM30 monthly and you can top it up with other high speed offers such as 10GB midnight/morning offers on demand.

They can't go too much out to open up this sort of plan to every DiGi user because they know their Infinite plan sales will take a serious hit and soon one by one their subscribers will either downgrade or port out.