The person who refers another person must inform them to use them by name when informing us of their referral. If both the person who referred and the person who is a result of the referral book, they both will get a discount. The referrer doesn't get the discount if the referred party doesn't book.
This can be done more than once, but the referral discount can only be offered on a singular booking. The discount for both is 10% off the initial booking for each party. It can't supersede the 10% on a single booking per client.