Matt Teo

Matt Teo

Payments Industry Commentator | Financial Culture Researcher

BA in Economics, obsessed with payment history (collects antique banknotes). Publishes Sociology of Payments series on Caixin, revealing urban-rural gaps behind QR code payments. His World Currency Museum virtual exhibit garnered 1M+ views.

Latest Articles

When Did SpaceX Go Public? How to Read the IPO Process, Prospectus, and Trading Time
When Did SpaceX Go Public? How to Read the IPO Process, Prospectus, and Trading Time
SpaceX has listed on Nasdaq under the ticker SPCX. This guide explains the SpaceX IPO timeline, S-1 prospectus, pricing vs. first trading day, pre-market and after-hours trading rules, lock-up periods, share unlocks, and follow-on financing risks.
Why Is SpaceX Valued So Highly? A Breakdown of Starlink, Launch Services, NASA Contracts, and Risks
Why Is SpaceX Valued So Highly? A Breakdown of Starlink, Launch Services, NASA Contracts, and Risks
SpaceX’s high valuation comes from Starlink revenue, reusable Falcon 9 launches, NASA contracts, and Starship’s long-term potential. Learn the key drivers, risks, costs, and investor considerations behind SPCX.
How to Buy U.S. Stocks Without a USD Account: Currency Conversion, Funding, and Fee Paths Explained
How to Buy U.S. Stocks Without a USD Account: Currency Conversion, Funding, and Fee Paths Explained
You can still buy U.S. stocks without a USD account. Learn how local currency converts into USD, how non-USD funding works, how platform FX and auto-conversion operate, and where trading and withdrawal fees may be charged.
What’s the Difference Between ChatGPT, Claude, and OpenAI API Payment Methods?
What’s the Difference Between ChatGPT, Claude, and OpenAI API Payment Methods?
ChatGPT, Claude, and OpenAI API payment methods differ in subscription entry points, API credits, pricing models, payment channels, and billing management. This guide compares suitable users, cost structures, payment failure causes, and selection strategies.
What Are the Risks of Using a Virtual Card to Subscribe to ChatGPT?
What Are the Risks of Using a Virtual Card to Subscribe to ChatGPT?
The main risks of using a virtual card to subscribe to ChatGPT include payment declines, renewal failures, issuing-region mismatch, incorrect billing address, failed 3DS/SCA verification, duplicate subscriptions, unclear refund paths, and non-compliant payment methods. Understanding these risks helps you manage ChatGPT Plus, Pro, and other AI service subscriptions more safely.
Bank Code vs Branch Code: Meaning, Examples and Transfer Form Tips
Bank Code vs Branch Code: Meaning, Examples and Transfer Form Tips
Understand the difference between bank code and branch code, with examples from the US, UK, Canada, Australia, Singapore and Hong Kong, plus practical transfer form tips for local and international payments.
Hang Seng USD Time Deposits and Multi-Currency Accounts: Interest Rates, Fees, and Who They Suit
Hang Seng USD Time Deposits and Multi-Currency Accounts: Interest Rates, Fees, and Who They Suit
Analyze Hang Seng USD time deposit rates, multi-currency account fees, minimum deposit amounts, tenors, early withdrawal rules, exchange rate risk, and deposit protection to assess whether USD time deposits are suitable for you.
Western Union Daily Sending Limits: Fees, Verification and Alternatives
Western Union Daily Sending Limits: Fees, Verification and Alternatives
Western Union daily sending limits vary by country, verification level, payment method and payout option. Learn how limits, fees, exchange rates, compliance checks and alternatives work before sending money internationally.
Instant Bank Accounts Online: What Is Real, What to Check and Safer Alternatives
Instant Bank Accounts Online: What Is Real, What to Check and Safer Alternatives
Learn what instant bank accounts online can and cannot do, how verification works, what protections apply, and safer alternatives for payments, direct deposits and international use.