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Illustration representing digital payment methods such as cards and mobile wallets

Merchant & POS

What is Digital Payment?

Payments made over the internet are called digital payments. Card payments, cryptocurrency, and online banking transfers all fall within the scope of digital payment, along with mobile wallets and QR code payments.

Diagram showing the pre-authorization closing process flow on a POS terminal

Merchant & POS

What Is Pre-Authorization Closing?

Pre-authorization closing turns a pre-authorized transaction into a financial one, posting it to the merchant and cardholder accounts. See how amounts and available limit are affected.

Exterior of the Takasbank headquarters building

Payment Systems

What is Takasbank?

Takasbank (Istanbul Settlement and Custody Bank) exists to increase the competitiveness of Turkey's markets by providing clearing and custody services, financial services, and other economic activities under the relevant legislation.

ATM cash trapping device attached to the cash dispenser slot

ATM

What is Cash Trapping?

Cash trapping is a type of ATM fraud in which criminals install a device on the ATM or interfere with its operation to trap dispensed cash, making it difficult to detect until the fraudster returns to retrieve the trapped money.

Illustration representing Visa card types used in payment processing

Payment Systems

What is the Card Type Information Used in the Visa System?

Card type information is used in card schemes such as MasterCard, Visa, and TROY. The card types and card type codes used in the Visa system include Credit, Prepaid, Debit, Deferred Debit, and Charge Card.

Announcement graphic for the FAST instant payment system transaction limit increase to 1,000 TL

FAST

FAST Transaction Limit Raised to 1,000 TL

Current information: This post describes the limit in effect at the time of publication. The FAST transaction limit, introduced in January, was raised periodically and reached 1,000 TL as of January 29. See the newer post for the current FAST limit.

Diagram showing how the iCVV code is generated for EMV chip cards

Credit Card

What Is iCVV? How Is It Generated?

iCVV stands for Integrated Circuit Card Verification Value. To prevent fraud, it is a CVV value generated similarly to the card's track data and stored on the card's chip. Visa uses the term iCVV; MasterCard and American Express use their own equivalents.

Diagram illustrating the structure of the AFL (Application File Locator) field on an EMV card

Merchant & POS

What is AFL (Application File Locator)?

AFL (Application File Locator) is the field that shows where on the card the data needed for the authorization transaction is located. AFL is a list of the application data records on the card, and the terminal uses it to read the application data.

Screenshot of the TOTAL mobile payment flow for paying for fuel from the car

Merchant & POS

A New Era in Fuel Retail: Paying Without Getting Out of the Car

Mobile phones are entering our lives more every day. One study found people forget their wallets more often than their phones. This post explains how to buy fuel with TOTAL Mobile Payment and BKM Express without getting out of the car.