How do I apply a coupon code?

To apply a coupon code on Interstatemusic.com, you would first need to add the desired items to your shopping cart. Once you have finished selecting your products, you can proceed to the checkout page. On the checkout page, you will find a designated area to enter your coupon code. Simply type or paste the code into this field and ensure that it is entered exactly as it appears, including any capital letters or special characters. After entering the code, you may need to click a button to apply it. The total amount should then automatically adjust, reflecting the discount provided by the coupon. If you encounter any issues during this process, it is advisable to consult the website for additional guidance or troubleshooting tips.