If you have one unactivated gigaRoam pack, and you purchase another 1GB gigaRoam pack, you will see 2GB gigaRoam pack displayed on your gigaRoam dashboard. This will be listed in the section "Purchased, not activated".

Upon arriving overseas, only 1GB will be activated at a time. The remaining packs, or in this example 1GB left, will only be activated if you are still overseas once the first 1GB pack has been fully utilised or expired.

Note that all gigaRoam packs must be used within 90 days after purchase or it will be forfeited.