If the myfortifx.com coupon code isn't working, several steps can be taken. First, ensure that the code has been entered correctly. Typos or extra spaces can cause the code to be invalid. Second, check the terms and conditions of the coupon. Some coupons are only valid for certain items, have a minimum purchase amount, or are only valid for a certain period of time. Third, try clearing the cache and cookies on the browser. Sometimes, old data stored in the browser can interfere with the application of the coupon. Lastly, if all else fails, contact customer service at myfortifx.com for assistance. They may be able to provide further insight or offer a solution. Remember, it's important to act quickly as some coupons have an expiration date.