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POS terminal screen showing the cancellation transaction menu

Merchant & POS

How does the cancellation (void) process work on a POS?

Many transactions are carried out with cards on a POS terminal. Sometimes a transaction must be reversed, and cancellation (void) is one such transaction. A Sale can only be cancelled on the POS before the batch (end of day) is closed; otherwise a refund is needed.

Diagram illustrating clearing types between card-issuing and POS banks

Clearing

What are the Clearing Types?

In card transactions via POS/ATM, when the card-issuing bank differs from the POS/ATM bank (Not Onus), the transaction is subject to clearing. Below, POS can also mean ATM. Is the clearing system a single type? No...

Credit card being presented at a POS terminal for a pre-authorization transaction

Merchant & POS

Is a Card Required for a Pre-Authorization Transaction?

Whether a card is required for a pre-authorization transaction depends on the type of POS used. On a physical POS, the card must be swiped or inserted to start the transaction. On a virtual POS, entering the card details manually is enough.

Illustration explaining the concept of the first online transaction after a card PIN change

Merchant & POS

What Does First Online Transaction Mean?

In payment systems, an online transaction means the transaction is sent to the card or POS/ATM bank at the moment it occurs, and required checks are obtained from that system. So does every transaction happen online? Of course not. Especially with contactless...

Infographic of 2018 card payment statistics in Turkey published by BKM

Merchant & POS

2018 Payment Systems Scorecard

BKM (Interbank Card Center) shared 2018 developments in card payments and the cashless society goal in Turkey. The data shows card payments becoming a bigger part of daily life every year.

Illustration representing the chargeback and dispute process in card payments

Chargeback

What Are the Domestic Exceptions to Chargeback Rules?

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.

Illustration representing the DCI debit credit indicator distinguishing card types in a transaction

Credit Card

What Is DCI (Debit/Credit Indicator)?

DCI (Debit/Credit Indicator) is a flag that shows whether a transaction was made with a credit card or a debit card. With the arrival of prepaid cards, it began to be used as DCPI (Debit/Credit/Prepaid Indicator). Is DCI sent in the authorization message?

Card skimming device attached to an ATM card reader slot

Fraud

What Is Card Skimming?

Card skimming is the theft of card information by copying it with the help of a device. Because data inside the chip is very difficult to steal, chip cards are far more secure than magnetic-stripe cards. Turkey is very advanced in card security technology.

Contactless payment wave symbol printed on a bank card

Contactless

Does My Card Support Contactless Payments?

You can tell whether a card supports contactless payments by the four wave symbols printed on it. If the wave symbol is present, your card supports contactless transactions. If not, contact your bank for a new card.