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Use the Risk Management page on the Merchant Interface to add details (IP addresses, email addresses, cardholder names) to referral lists. You may want to add entries to referral lists when in the course of trading online you encounter shoppers who abuse their card privileges or you suspect are involved in fraud attempts.
When a shopper makes a purchase from your website, our Risk Management service runs automated checks, and as part of these checks, entries on your referral lists are compared with data in a shopper's payment. If a match is found then payment processing is stopped before the authorisation request is made to the card issuer and the transactions is given a payment status of REFUSED on the Merchant Interface.
Configuration setting - change the configuration setting (merchants with more than one merchant code).
IP address referral list - block transactions using a particular IP address or range of IP addresses.
Email address referral list - block transactions using a particular email address.
Card/account holder name referral list - block transactions using a particular cardholder name.
For an introduction to our Risk Management service, refer to the Introduction of this guide.
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