There might be a few issues. First one, you mistyped the coupon code. So if the code is not working, make sure it’s correctly entered. Another possible issue - the promo code has already been used before. Have in mind that most coupon codes are for one usage only. Also, the coupon site where you found the code might be fake or lousy. Meaning, that the promo code was already expired or wasn’t even legit in the first place. That’s why I advise you to only use promo codes from trusted sources like ours.