The Customer Operating Instructions guide will help you make the most of accepting cards with Worldpay and tells you what you need to know about accepting card payments securely. Please read the guide carefully, as it will help you to accept card payments efficiently and smoothly, receive payments to your bank account and how to protect your business from fraud. The contents of this guide form part of your contract with Worldpay. The Customer Operating Instructions are referred to as the Merchant Operating Instructions in our contractual arrangements.