Yes, unlimited data banking comes with all of our mobile plans, but is not available for our data plans where data expires at the end of each billing period.
For mobile plans, you can roll over and keep your unused data, including any bonus or gifted data in your data bank each month as long as you pay on time.
Things you should know: You'll lose all your banked data when payment is more than 25 days overdue or if you cancel your Belong mobile service.