You updated your payment method.
You entered the new card.
The system accepted it.
But when billing runs — it fails.
Authentication error.
Payment declined.
Subscription paused.
This usually isn’t a balance issue — it’s an authentication failure.
Why Authentication Fails After Adding a Card
- Bank requires 3D Secure verification
- Card lacks international billing approval
- Billing address mismatch
- Fraud protection blocked the charge
New cards trigger additional security checks.
Common Signs of Verification Failure
- “Authentication Required” message
- Payment pending then declined
- No charge appears on bank statement
- Subscription shows payment failed
The system waits for bank authorization.
How to Fix the Authentication Error
- Complete 3D Secure verification
- Confirm billing address accuracy
- Enable overseas payments with bank
- Retry payment after bank approval
Most authentication blocks clear after manual verification.
Before Retrying Payment
- Do not add multiple cards
- Avoid repeated rapid attempts
- Contact bank if verification fails
Too many retries can trigger fraud locks.
Always clear authentication first before rebilling.