a. With the Roll-Over feature you can carry forward your unused bill plan data balance for future consumption. No expiry available for the rolled over data and will remain until the connection gets permanently disconnected.
b. e.g.: At the end of the bill cycle, you have 25 GB unused data and you can carry forward this to your next bill cycle. Likewise you can collect unused data from every bill cycle until it reaches to a maximum of 200 GB.
