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Payment Systems
After Russia invaded Ukraine, Visa and Mastercard suspended services for sanctioned Russian banks. This post explains the impact on cardholders and merchants, and Russia's MIR and UnionPay alternatives.
Security
Payment security is very important in payment systems. To increase security, transactions require additional information such as PINs and passwords. Remembering which information to use, and keeping it in mind without forgetting…
Credit Card
It is common for logos to include the brand's name. However, many major brands that shape their industries use only their own symbol, without any name. Apple, Nike, and Target are examples of category leaders who rely solely on their logo.
Merchant & POS
In order for a bank's POS devices to process transactions with payment scheme cards (Visa, MasterCard, Troy, etc.), they must pass certain test and control steps. Visa and MasterCard have test tools that include test cards and test scenarios for this purpose…
Merchant & POS
Payment systems once meant a physical card and a PIN on a POS device. Digitalization that began with contactless transactions has accelerated with mobile payments, and MasterCard is now working on voice shopping and Soft POS in Turkey.
Chargeback
The MasterCard and Visa chargeback reason codes that always, sometimes or never require a draft retrieval before a chargeback, with their descriptions. Includes Visa codes such as 60, 75, 79 and 81 and MasterCard codes 4801 and 4802.
Credit Card
Visa, Mastercard, and TROY logos on a card represent the payment scheme behind it. Learn what these brands actually do and how a new BIN gets certified.
Security
Fraud means obtaining unjust gain by carrying out a transaction at a merchant or ATM using someone else's credit card or debit card, causing a loss to the real cardholder, the merchant, or the bank. So what fraud codes do Visa and Mastercard use?
Credit Card
The name for a list of problematic cards — lost, stolen, expired, over-limit, counterfeit, or otherwise flagged — published by card companies like Visa and MasterCard. Mastercard calls it the 'MasterCard Warning Notice'.
Merchant & POS
For a POS device to process a transaction with a card issued under a payment scheme such as MasterCard or Visa, the device must complete the required certifications for that scheme. First, the acquiring bank must clarify several points before entering certification.
Payment Systems
The rules in this guide relate to the processing of Transactions and Payment Transactions made with Mastercard-branded cards. Here are the key definitions and where to find the document.
Payment Systems
The MasterCard and Visa Chargeback Reason Codes Requiring a Written Merchant Rebuttal are listed below. Visa: Supporting documentation (sales drafts, contracts, proof of delivery) always strengthens the case. Codes include 30, 41, 53, 57, 75, 80, 85, 86 for Visa and 4831-4863 for MasterCard.