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 Pre-Order or 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.