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Flowchart showing the chargeback dispute process between cardholder, issuer, and merchant

Chargeback

What is a 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.

Diagram illustrating how a POS device identifies foreign bank cards using BIN lists

Merchant & POS

How Does a POS Device Detect Foreign Cards?

A POS is a functional device with its own dedicated software, customized according to the authorization system of the bank it is connected to, that accepts credit or debit cards. So, banks abroad launch dozens of new card products every day…

Credit card lying on a flat surface representing a supplementary card linked to a primary account

Credit Card

What Is a Supplementary Card?

A financial card product issued against a primary card, with its own card number, expiration date, authority, limit, and PIN. Using a supplementary card is ideal for making purchases from more than one card while keeping all spending on a single statement.

Diagram of basic payment systems terminology including issuer, acquirer, and authorization

Payment Systems

Basic Terms Used in Payment Systems

Although many important terms are used in payment systems, the expressions below are its cornerstones — the ABCs of payment systems, so to speak. Issuer: the credit card company, usually a bank, that issues the card and tracks debt, credit, bonus points, and other services for the customer.

Diagram illustrating the tokenization and detokenization process for card payments

HCE

What Are Tokenization and Detokenization?

Tokenization generates secure data from a credit card number, using specific algorithms, for use during authorization. In CNP transactions, it removes the risk of storing or compromising the original card number.

Hand holding a credit card near an ATM screen used to check card debt

Credit Card

How Can I Check My Credit Card Debt?

In the past, banking transactions could only be carried out at branches, but with the advance of technology, customers can now complete their transactions through many channels without visiting a branch. Checking credit card debt is one of these.

Illustration representing credit card loyalty points and rewards

Merchant & POS

What are Loyalty Points?

Loyalty points are promotional rewards banks give customers for credit card transactions, tracked on a card/customer basis. Banks charge merchants a commission on POS transactions, and some share part of that commission with cardholders as points.

Customer paying credit card debt through a mobile banking app

Credit Card

How do I pay my credit card debt?

In the past, banking could only be done at branches, but with technology, customers can now check and pay credit card debt through ATMs, branches, internet banking, mobile banking, and the PTT post office.

Credit card being inserted into a merchant POS terminal

Credit Card

What Is the Transaction Life Cycle in the Card World?

As credit cards become more and more a part of our lives, we now make almost all our purchases without cash. We inserted our card into the merchant's POS. We made a 100 TRY sale transaction. We received a receipt confirming it was successful.

Diagram illustrating the card authorization process

Merchant & POS

What Happens During Authorization?

Today, credit cards play an important role in our daily lives. We can carry out almost all of our transactions without carrying cash, using our credit card instead. During a purchase, we hand our card to the cashier and enter our PIN at the POS terminal.