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How Chargeback Reason Codes Work: What the Code Tells You, What It Hides, and How to Read Your Own Dispute Data

How Chargeback Reason Codes Work: What the Code Tells You, What It Hides, and How to Read Your Own Dispute Data

by Allen Kopelman | Oct 30, 2026 | Uncategorized

A chargeback reason code is a short label, usually a number such as 10.4 or 4837, that the customer’s bank attaches to a dispute to say what kind of claim it is. The code tells you which evidence the bank expects to see, but it does not tell you why the customer...
Interchange Qualification and Downgrades: Why the Same Card Costs Different Amounts and What Triggers a Downgrade

Interchange Qualification and Downgrades: Why the Same Card Costs Different Amounts and What Triggers a Downgrade

by Allen Kopelman | Oct 30, 2026 | Uncategorized

The same card costs different amounts because every card payment is sorted into an interchange category, and the lowest-cost category has requirements your sale must meet. When a sale misses a requirement, it is “downgraded” into a higher-cost category,...
B2B Merchant Accounts: What Changes When Your Customers Are Businesses

B2B Merchant Accounts: What Changes When Your Customers Are Businesses

by Allen Kopelman | Oct 29, 2026 | Uncategorized

A B2B merchant account is a merchant account used by a company that sells to other companies, and it behaves differently from one built for a shop. The tickets are bigger, the sales are invoiced rather than rung up, buyers often pay with corporate or purchasing cards...
How Retail and POS Businesses Can Use AI and Simple Controls to Reduce Payment Fraud and Chargebacks

How Retail and POS Businesses Can Use AI and Simple Controls to Reduce Payment Fraud and Chargebacks

by Allen Kopelman | Oct 29, 2026 | Uncategorized

Artificial intelligence can help a store or restaurant catch bad payments before they are approved, but it is one layer in a stack, not a replacement for the basics. NPS describes AI fraud prevention as software that studies transaction patterns, device details and...
What Is an ISV in Payments? How Software Companies Handle and Earn From Card Payments

What Is an ISV in Payments? How Software Companies Handle and Earn From Card Payments

by Allen Kopelman | Oct 29, 2026 | Uncategorized

An ISV, short for independent software vendor, is a company that makes and sells its own software, and in payments the word is used for any software company whose customers take payments through that software or ought to. If you run a scheduling app, a...
The Merchant’s Guide to What You Really Pay for Card Processing

The Merchant’s Guide to What You Really Pay for Card Processing

by Allen Kopelman | Oct 29, 2026 | Uncategorized

What you really pay for card processing is more than the percentage on your quote. It is the equipment you choose, the fees stacked inside every transaction, the add-ons that raise your effective rate, the days you wait for your money, and the cost of the disputes you...
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Allen Kopelman
CEO - Nationwide Payment Systems

Latest Posts

  • Age Verification as a Chargeback Vector: How Tobacco Merchants Lose Disputes They Think They Should Win
  • Credit Card Processing for Small Business: How to Choose and Set Up
  • Custom Payment API Integration: When a Business Needs One and What to Ask a Payment Provider
    Custom Payment API Integration: When a Business Needs One and What to Ask a Payment Provider

B2B Vault: The Biz To Biz Podcast

B2B Vault: The Biz to Biz Podcast
  • Age Verification as a Chargeback Vector: How Tobacco Merchants Lose Disputes They Think They Should Win
  • Credit Card Processing for Small Business: How to Choose and Set Up
  • Custom Payment API Integration: When a Business Needs One and What to Ask a Payment Provider
  • Restaurant and Bar Card Payments: Tips, Tip Adjustments, Chargebacks and the Equipment That Fits
  • High-Risk Payment Gateways for Shopify and Other Hosted Stores: What to Check Before You Choose One
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