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Person reporting a stolen credit card to their bank

Credit Card

What should I do if my card is stolen?

If your card has been stolen: call your card's bank and close it with a Stolen status, check for transactions you don't recognize and dispute them, and update any automatic payment instructions tied to the old card.

TR QR Code supported payment devices

Payment Systems

Which Devices Can I Pay From With the TR QR Code?

According to BKM's TR QR Code Technical Principles and Rules Guide for card payments, QR code payment structures apply to EFTPOS, shared EFTPOS, ÖKC, ATMs, payment provider apps, static QR codes and virtual POS.

Close-up of a payment card showing its first six digits, the BIN

Credit Card

What Is a BIN (Bank Identification Number)?

BIN stands for Bank Identification Number, the unique code made up of a card's first 6 digits that identifies which bank issued it, under the ISO/IEC 7812 standard.

Diagram illustrating the structure of an Issuer Identification Number (IIN) on a payment card

Credit Card

What is an Issuer Identification Number (IIN)?

Issuer Identification Number (IIN) is the first 6 digits of 16-digit cards and the first 8 digits of 19-digit cards. It is more commonly known as BIN (Bank Identification Number). Learn what the IIN table holds and how to look one up.

Diagram of chip card file structure showing MF, DF, and EF layers

EMV

What is Dedicated File Name (DFN)?

DFN is the abbreviation for Dedicated File Name. It defines the name of the DF (Dedicated File) as described in ISO/IEC 7816-4. It is the data found in Tag 84, 5 to 16 characters in length.

American Express (Amex) card and logo

Credit Card

What Is an Amex (American Express) Card?

Amex is short for American Express, a payment scheme like Mastercard, Visa, or TROY. Learn its history, what sets Amex cards apart, and whether every website accepts them.

Announcement graphic showing the contactless card transaction limit being raised to 500 TL

Credit Card

Contactless transaction limit rising to 500 TL

The BRSA has decided to raise the contactless card transaction limit to 500 TL, effective 1 February. This post explains the change, how PIN entry works above the limit, and how the limit has evolved since 2019.

Payment by SMS link on a mobile phone illustration

E-commerce

What Is Payment by SMS?

Payment by SMS is a solution where the merchant sends the customer a link via SMS through an online collection system, and the customer pays by entering their debit or credit card details.

Diagram of an e-money institution and the services it can provide under Law No. 6493

Payment Institutions & E-Money

What Is an E-Money Institution? Which Services Can It Provide Under Law No. 6493?

The Law defines e-money as monetary value issued in exchange for funds accepted by the issuer, stored electronically, used for payment transactions and accepted as a payment instrument by persons other than the issuer. This post explains e-money institutions and the services they may provide.

Illustration of embedded finance, with payment, credit, insurance and investment services built into everyday digital platforms

Open Banking

What Is Embedded Finance?

Embedded Finance means integrating financial products and services into non-financial platforms, experiences or business processes. In other words, services offered by financial institutions become part of the product or service flows of non-financial organizations.