What is the flow of a Chargeback / Dispute? You can find detailed information on chargebacks and disputes in Disputes. For a definition of chargebacks, visit the Payment glossary. For more information contact Support. Submit a request Articles in this section What is the flow of a Chargeback / Dispute? How does the fraud score work? I have a question about Visa Claims Resolution (VCR) How do I get updated about a Notification Of Fraud (NOF)? What is the 3D Secure liability shift, and when does it occur? How do I disable 3D Secure? How do I block or trust a shopper? How do I block and unblock cards involved in fraudulent chargebacks?