We offer various promotional codes and offers that either need to be entered manually or automatically apply.Promotional Codes: Promo codes can be manually entered after you click Check Out in your cart and enter the check out process. There will be a box where you can simply enter your code and hit Apply.Automatic Promotions: Some advertised promos are automatically applied to your cart when certain conditions are met. Make sure you read the instructions and conditions carefully to ensure the promo is applied correctly. Please contact us here if you have any questions or concerns.Stacking: Only one promo can be used on an order at a time. In some cases and if certain conditions are met for free shipping, other promos can be applied to stack on top of the free shipping offer.