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Online & Authorization
These are codes that communicate the issuer's conditions for approving a transaction online (IAC-Online), for declining it (IAC-Denial), or for declining it when the terminal cannot go online (IAC-Default).
Payment Systems
Let's talk about payment systems, which we have heard more about since the internet entered our lives, and the basic structures behind them. The first credit card in the world was used in America in the 1920s.
Laws & Regulations
This guide, aligned with the TR QR Code regulation and its annex, describes the workflows for FAST payments using merchant-presented and person-to-person QR codes and defines the related TR QR Code data organization.
EMV
The Visa EAS Server (Extended Access Service) is a server used in Visa’s authentication infrastructure. It was developed to run the cardholder authentication process securely between banks and the Visa network, particularly within Visa Secure (3-D Secure 2.x).
Chargeback
The MasterCard and Visa chargeback reason codes that always, sometimes or never require a draft retrieval before a chargeback, with their descriptions. Includes Visa codes such as 60, 75, 79 and 81 and MasterCard codes 4801 and 4802.
Merchant & POS
Address Verification Service (AVS) is a fraud prevention system that helps limit fraud and chargebacks when used effectively. It verifies that the address a customer enters matches the cardholder's address on file with the issuer.
Credit Card
American Express, Discover, Visa and Mastercard have started working together on an infrastructure that lets leading US e-commerce sites accept one-click payments, so shoppers no longer need to type in all their card details.
Payment Institutions & E-Money
A prepaid card usable only at goods and service providers inside a single holiday village is considered to be used within a limited network and outside the scope of the Law, provided certain conditions are met.
Online & Authorization
Commercial off-the-shelf (COTS) products and services are ready-made, packaged solutions adapted to a purchasing organization's needs, rather than custom-built ones. In payment systems, COTS includes ready-made payment apps for phones and Android POS devices.
Payment Systems
Chargeback reason codes differ by card scheme. Here is the list of Discover chargeback reason codes and their descriptions, along with how merchants can use them.
Chargeback
A chargeback is the process of refunding an amount back to a credit card when goods or services paid for are not received, or when transactions not carried out by the cardholder are identified. It is translated into Turkish as reverse presentment.
Credit Card
From the invite-only American Express Centurion Card to the diamond-studded Dubai First Royal MasterCard, discover the world's most exclusive credit cards.