You have of store credit. To use it, simply place your order and you will be able to choose store credit as the payment method when it comes time to pay for your order.
SMOK MODs and RBAs
SMOKtech designs on their Box MODs are superior. They have really put a lot of thought in their manufacturing process to come out with these exceptional boxes. The option and ability to control your MOD from your smartphone or tablet is an interesting feature.