Unfortunately, all discount codes must be applied prior to Checking Out. Once an order is placed, a discount code cannot be applied to it.
Discount codes must be applied at the time of checkout. If you forget to apply the code or the code doesn't apply for some reason, price adjustments/refunds/credits will not be issued. If you are having issues with applying a discount code, please contact us prior to checking out.
Discount codes or sale promotions are not retroactive and price adjustments/refunds/credits will not be issued if an order is placed prior or outside of any promotion.