You can use your Monthly or Forever Credit toward any purchase from your Rocksbox set. To make a purchase, go to "My Set" from the top menu and select the item you would like to purchase using the checkbox(es) on the left of the item(s) you wish to purchase. You can then scroll to the bottom of the page to view the total cost with any applicable credit or promotions applied. Available Credit will be automatically applied, and you'll see the discounted total reflected at the bottom of the page.

Monthly Credit expires at the end of each month, so be sure to take advantage of it! On the first of each month, you'll get a new $21 Monthly Credit to use toward a purchase from your Rocksbox set.