First please check the spelling of the promotional/discount code. Then please check the main page to see what the active promotional/discount code codes are for ZodicaGal.com. The code you have may be expired. Additionally, make sure the complete cost of your items qualifies for the promo or discount code. If these troubleshooting measures do not work please email support@zodiacgal.com with the items you have attempted to purchase as well as the promotional code so that we may troubleshoot the issue.