Tap the App Store icon from the Home Screen. Navigate to the New section on the Featured tab. Scroll to the bottom of the list to locate and tap the Redeem button. Enter the promo code and tap the Redeem button in the upper right. Tap done on the Thank You screen, then tap the home button to return to the home screen.How do promo or discount codes work?
Promotional codes allow you to market the products on your ecommerce website by providing customers with a discount on certain items. The discount associated with the code can take money off individual products or the total order. The discount can either be a percentage or a specific dollar amount.