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Payment Systems
The BRSA has published a draft amendment to the regulation on remote identification methods used by banks and electronic contract relationships. It extends remote onboarding to legal entities, including MERSIS-based verification of representatives.
Online & Authorization
In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.
Payment Systems
In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.
Payment Systems
Why do institutions track inefficient POS terminals and lines? This post looks at the costs they create, such as device purchases, field service and software fees, and how to deal with merchants that generate little turnover.
Credit Card
A prepaid card is a customized card, with or without a chip, not linked to a bank account and without a credit limit like credit cards, letting you spend only the amount loaded onto it.
Credit Card
Payment systems are changing fast, and new players are emerging. The Advantage Card, the first installment credit card in Turkey and Europe, did not come from a bank, which holds lessons for today's fintech entrepreneurs.
Credit Card
Credit cards can be a convenient way to manage income and expenses, but for those who don't know how to use them, they can become an expensive and risky product. Here are the key pros and cons to weigh before applying for one.
ISO 8583
F61 - POINT OF SERVICE (POS) DATA: This field provides information about the specific status of the POS at the time of the transaction. Position Usage Attribute 1 POS Terminal Attendance Indicator 0 = Attended terminal (Valid for MasterCard debit card and Maestro transactions only).
E-commerce
AI agents are moving beyond answering questions to searching, deciding, and paying on behalf of users. This post explains Agentic Commerce and what it means for payment systems, digital wallets, e-money institutions, banks, and fintechs.
Chargeback
A chargeback is the refund of an amount paid by credit card to the cardholder's card when the purchased goods or services were not received, or when a transaction was not actually carried out by the cardholder.
Mobile Payments
TR QR Code is the QR code standard defined by the regulation on generating and using TR QR codes in payment services. FAST – TR QR Code refers to the TR QR Code used for payments made through FAST, built on BKM's infrastructure.
Merchant & POS
Let's first look at chargeback and refund: a chargeback returns the amount paid to a credit card when goods or services are not received, or when transactions not made by the cardholder are detected.