Promo codes on demonslayer-world.com can be used during the checkout process. Follow these steps:
- Add items to the shopping cart.
- Proceed to the checkout page.
- Look for a promo code box or discount code field.
- Enter the promo code in the designated box.
- Click on apply or submit to activate the discount.
- The discount should be reflected in the total amount before completing the purchase.
If the promo code is valid, the discount will be applied to the order. If not, ensure the code is entered correctly and check for any terms and conditions that might apply.