Add the Item to your shopping cart. Confirm that you are buying what you want, and that it fulfills any requirements to qualify for the Bannerengineering promotion code you want to use. Go through the bannerengineering.com checkout process. At each page, scan the page for a coupon code or promotion code option. Copy and paste the Bannerengineering coupon code in the box next to the product and click 'Apply' or 'Submit'... Scan your shopping cart to confirm that the coupon code was properly entered and is reflected in your total price. The Bannerengineering coupon discount will adjust your order total. Some sellers also offer Thank. If not, navigate back through the checkout process and try again.