If you've received a discount code, you will be prompted to enter it in AFTER you go through check out and BEFORE you finalize the amount paid. There are NO REFUNDS on gift certificates or purchases made using gift certificates.

The discount will be applied to the original purchase amount, which does not include taxes and shipping. Tax is calculated on the price AFTER the code is applied. Shipping is also added to the amount, and must be paid. Discount codes cannot be combined.

GIFT CERTIFICATE discount codes are for a dollar amount:
As with a % discount code, a $ discount code will be applied to the original purchase amount, excluding taxes and shipping.  

Gift Certificates can be applied one time for purchase on an order. The amount of your gift certificate is the minimum amount of your purchase. For example, if you have a $25 gift certificate, your order must be a minimum of $25 (excluding taxes & shipping) for the discount code to work (otherwise you will receive an error message at checkout). If your gift certificate discount code amount is LOWER than your purchase amount, you will be required to pay the balance (as well as the tax only on that balance). 

If you have any questions, or need assistance with using your discount code, please contact SLJ.