There are a number of reasons why this might be the case:
- It might have expired (all referrer codes are valid for 3 months, and all codes for those that have been referred are valid for 2 weeks).
- You have already used it (you are only able to use your referral code once).
- You might not be eligible to use it (you are only able to refer someone for their first orders).
- You don't meet the minimum spend (all referral codes have a minimum spend of £75).
- You are trying to use it on an item that is not eligible for discounts (unfortunately, discount codes are not eligible on Gift Cards, and there may be other instances where discounts are not valid on all items).
- You are trying to use it on a sale item (unfortunately, referral codes are only valid on full price items).
If you're still struggling after checking the above, then please drop an email to firstname.lastname@example.org.