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Laws & Regulations
The Regulation on the Generation and Use of TR QR Code in Payment Systems sets the standards for QR codes in payment services. The Central Bank has taken the first step by drafting rules for a common QR code structure.
Merchant & POS
Partial Authorization lets an issuer approve part of a transaction instead of declining it when the balance or limit is insufficient. This post covers how it works in ISO 8583, whether it is mandatory, and why it matters for the business.
Closed-Loop Payments
Why does a coffee chain build its own loyalty program, and why does a payment app keep adding services? This post looks at how loyalty, data, and new services drive the growth of closed-loop payment systems, and at the financial layers behind that growth.
ATM
The Integrated Motorized Card Reader Writer is a hybrid motorized card reader/writer used in some ATM models, self-service terminals, self-service charging machines, vending machines, and media inquiry machines, supporting magnetic stripe, RFID, and IC card reading.
Laws & Regulations
The Regulation on Generating and Using TR QR Code in Payment Services and its attached TR QR Code Principles and Rules document were published in the Official Gazette No. 31220 dated August 21, 2020, to ensure interoperability in QR code payments.
Payment Systems
The MasterCard and Visa Chargeback Reason Codes Requiring a Written Merchant Rebuttal are listed below. Visa: Supporting documentation (sales drafts, contracts, proof of delivery) always strengthens the case. Codes include 30, 41, 53, 57, 75, 80, 85, 86 for Visa and 4831-4863 for MasterCard.
FAST
The Instant and Continuous Transfer of Funds (FAST) System lets customers send payment instructions 24/7 through bank systems, independent of EFT. This article explains what Easy Address is, how to register one and how transfers work.
ATM
A Bitcoin ATM (BTM) is a specialized kiosk designed for Bitcoin transactions, letting users buy and sell Bitcoin. General features: it enables Bitcoin purchases and sales, and while it visually resembles traditional ATMs...
FAST
New banks are added to the Easy Address system every day. Here is the list of banks that supported the Easy Address System at the time, and where to find the current list.
Payment Systems
After Russia invaded Ukraine, Visa and Mastercard suspended services for sanctioned Russian banks. This post explains the impact on cardholders and merchants, and Russia's MIR and UnionPay alternatives.
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.
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.