The Double Special Promo is the period in which your Base Data is doubled when you subscribe to 5GB Base Data and above! For example, if you purchase 30GB Base Data, we double it and you’ll receive 60GB Base Data in your plan. (this applies to existing users before 1 Dec, who are on auto renew). Any subscription after 1 Dec will already see the new data quotas reflected on our sliders.
This promotion is only applicable to the quotas of 5GB and above and is only for Base Data. The 2GB Base Data option is not eligible and will not be doubled to 4GB. The full table can be found here.