When you delete a Instant Gallery, you do not replenish your unused galleries. The one you deleted has been used.
If you wish to undo a deletion, go to your Recycle Bin
If you are out of Instant Galleries, and need to purchase more, you may purchase them here.
If our team can be of any additional assistance, please send us an email to support@zno.com or give us a call at 1-888-966-9539.