How do I use a discount or promo code?

To use a discount or promo code on hdis.com, you will typically start by selecting the items you wish to purchase and adding them to your cart. Once you have completed shopping, navigate to your cart or checkout page. Here, you should notice a designated field labeled for promotional or discount codes. Enter your code into this field exactly as it appears, ensuring there are no extra spaces or typographical errors. After entering the code, you may need to click a button to apply the discount. The cart total will automatically adjust to reflect the applied discount. If the code is valid, the new total will display, allowing you to proceed with your order. It is also important to check any terms and conditions associated with the promo code, as they may have expiration dates or specific requirements. For further assistance, visit the current web page for detailed instructions or additional help.