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Easy Addressing System (KOLAS) participation diagram

FAST

Which Institutions Can Provide the Easy Address Service?

To offer the Easy Address service, an institution needs approval from the Central Bank of the Republic of Türkiye (CBRT), documented eligibility to participate in FAST or EFT, and completed administrative and technical processes with BKM.

Illustration of recurring payments and automatic card collection for subscription businesses

Merchant & POS

Key Points to Watch for in Recurring Payments

Winning customers is one of the most important things in business, but keeping them satisfied matters just as much. If you collect payments at regular intervals, such as monthly, these tips will help you improve the success rate of recurring collections.

Credit card limit increase approval illustration

Credit Card

Can My Credit Card Limit Be Increased Without My Permission?

The limit set when the card was issued cannot be increased without the cardholder's permission and approval. If you have instructed periodic limit increases, later increases take effect unless you object within fifteen days of being notified.

Table of credit card authorization response codes

Credit Card

What are Credit Card Status Codes in Authorization?

Cases where authorization approval is declined have always puzzled cardholders. Whenever the response code requires contacting the issuing bank (usually for declined transactions), the date, amount, and response code of the failed transaction become very important.

Diagram illustrating the Store and Forward (SAF) offline transaction process

Payment Systems

What is Store and Forward (SAF)?

Store and Forward (SAF) describes offline transaction processing. It was originally developed when modems were introduced and connections were not always stable, letting terminals store transactions and forward them once connectivity is restored.

Check-out button on an online payment screen

Security

What is Check Out?

In online shopping, converting product browsing into a completed sale after a customer visits your site is just as critical. The amount of purchases abandoned due to friction in the online buying process often exceeds successful sales.

Illustration of virtual POS and online payment companies

Payment Institutions & E-Money

How can I get the Active Payment Institution list?

With digitalization, many products are becoming digital, and company types and services offered to customers are diversifying. Payment institutions have been part of our lives since 2015.

Illustration representing payment instruments such as cards and mobile devices

Payment Institutions & E-Money

What is a payment instrument?

Law No. 6493 on Payment and Securities Settlement Systems, Payment Services and Electronic Money Institutions defines a payment instrument as a personalized device such as a card, mobile phone, or password.

Courier handing a package to a customer for cash-on-delivery payment

Merchant & POS

What Is Cash on Delivery?

Cash on delivery means paying for an online order at the moment of delivery, usually in cash, though some e-commerce sites also accept card payment at the door. It boosts sales and builds trust, but carries risks like missing POS terminals and refused deliveries.

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.