You paid in Korean won.
But your app or card history shows the charge in U.S. dollars.
It looks like a foreign payment.
It feels like the price changed.
Most of the time, this is a display and processing issue — not a second charge.
Why a KRW Payment Can Appear as USD
- The merchant is registered as an overseas seller (global merchant account)
- The payment processor routes the charge through a foreign acquiring bank
- The app shows the “authorization currency” first, not the final billed currency
- A temporary authorization holds an estimated USD amount before KRW finalization
In many systems, the first screen you see is not the final settlement record.
How to Tell if It’s Only a Display Issue
- Check whether the charge is marked as Pending or Completed
- Compare the “authorization” amount vs the “posted/settled” amount
- Look for a KRW conversion line or exchange-rate detail in your statement
- Wait 1–3 business days for the final posted currency to update
Once posted, many banks will show the final KRW amount even if the authorization appeared in USD.
What Can Increase the Final KRW Amount
- Exchange-rate changes between authorization and settlement
- Foreign transaction fees (bank/card issuer fees)
- Dynamic currency conversion (DCC) chosen at checkout
If you see extra fees, check whether DCC was applied.
When to Contact Support
- If the posted currency stays USD after 5 business days
- If the final KRW amount is far higher than expected
- If you see two posted charges for the same purchase
Start by confirming the posted (final) transaction — not the temporary authorization.