WeiJun Tang
Content Strategist | Cross-Border Acquiring, Card Issuing & Payment Fees
WeiJun Tang is a Payment Content Strategist and Senior Editorial Reviewer at HaiPay. He leads primary-source research and technical fact-checking across card network rules, merchant acquiring architecture, and cross-border funds flow for global digital commerce.
Responsible Domains: Cross-border merchant acquiring and multi-currency settlement, interchange-plus vs. blended card processing fee structures, B2B and enterprise payment acceptance, payment gateway reconciliation and Acquirer Reference Number (ARN) tracking, Address Verification Service (AVS), and commercial/virtual card issuing platforms and APIs.
Authored Articles
Payment Settlement Time: What T+N Actually Means and When Your Money Arrives
August 24th
B2B Payment Acceptance: The Supplier's Side
August 20th
Interchange Plus Pricing: How to Read the Quote and Do the Math
August 20th
Credit Card Processing Fees: Rates, Real Merchant Numbers, and How to Lower Yours
August 18th
Payment Gateway Reconciliation: How to Match Settlement Reports to Your Books
August 12th
Payment Gateway vs Payment Processor: What's the Difference?
June 11th
Payment Service Provider: Check the Service Boundaries
June 11th
Merchant Account vs Payment Gateway: Do You Need Both?
June 9th
Reviewed Articles
3D Secure Payment Gateway: Merchant Setup and Testing
September 8th
MCC Codes: Classify Digital Sales and Confirm Your Code
September 7th
Chargeback vs Refund: Refund, Accept, or Challenge
September 2nd
Chargeback Reason Codes: Visa Lookup and Response Checks
August 25th
Payment Gateway Integration: A Non-Code Selection and Launch Guide
August 23rd
Cheapest & Low-Cost Payment Gateways: Compare Total Merchant Cost
August 21st
Credit Card Decline Codes: A Merchant's Guide to Reading Them as Risk Signals
August 20th
What Is Banking as a Service (BaaS)? A Guide for Cross-Border Platforms
July 22nd
Ecommerce Merchant Account: How It Works and How to Choose One
July 21st
Embedded Payments & Embedded Finance: Cross-Border Platform Guide
July 9th
Card on File: Consent, CIT vs MIT, and a Launch Checklist
July 1st
JCB Payment: Acceptance Checks for Global Merchants
June 25th
Payment API Integration: What a Payment API Is and How Integration Works
June 24th
Pay by Bank: Checkout, Refunds and Settlement Checklist
June 23rd
Intelligent Payment Routing: How It Works and the Main Routing Strategies
June 22nd
Local Payment Acquiring for Ecommerce: A Practical Guide
June 9th
Cross-border Acquiring Fees: What Merchants Need to Understand
June 8th
Payment Facilitator Compliance Checklist
June 5th
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