If a paradoxbeauty.com coupon code isn't working, several steps can be taken to troubleshoot the issue. First, check the fine print for any exclusions or restrictions. The code might exclude certain brands, products, or product categories. Also, ensure the code hasn't expired or reached its usage limit. If the fine print checks out, try using a different web browser or device. Sometimes, online promo codes may not work in certain browsers. Disabling browser extensions temporarily can also help, as extensions like Honey, Capital One Shopping, or Rakuten can interfere with promo codes. Clearing cookies, cache, and site data in the browser can often resolve issues with promo codes. If all else fails, contact customer service for help or search for a new working promo code. Remember, these are general steps and might not apply to all websites. If these steps don't help, it's recommended to reach out to the customer service of paradoxbeauty.com directly.