GiffGaff removed the Queued GoodyBag option in June when they introduced Recurring GoodyBags, as it seems there was some doubt as to whether the two payment methods could run side-by-side.
This means that GiffGaff users must now either set up a Recurring GoodyBag (which requires a debit card to be registered on the system and cannot be done with existing credit), or manually purchase a GoodyBag (either with a card or from credit) at any point after the existing GoodyBag has expired (ie from 12:01am the next day); note that calls, texts and internet useage will all be chargeable during this time.
GiffGaff are currently looking at reinstating the queue system, with the current date for this to take place being October.
Since June 25th , you can no longer buy queued goodybags. You have to wait for yourlive one to expire you can buy a new one at 00.01 am or after before you can buy a new one. And you incurr data charges inbetween goodybags. You can now however buy recurring goodybags which you can set up with credit or debit cards. Hopefully gg are due to bring back queued bags in October of this year.