If paid event registration fails at checkout, it's almost always one of a handful of issues — most are easy to work through.
Common causes
Card declined. Check that:
- The card number, expiration, and CVC are correct.
- The card hasn't expired or been replaced.
- Your bank isn't blocking the charge — some banks flag small merchant charges. Call your bank or try a different card.
Browser extensions interfere. Some privacy/ad-blocker extensions break Stripe Checkout. Try in an incognito window or temporarily disable extensions.
Weak network. If your Wi-Fi is unstable, the checkout can time out. Try cell data or a different network.
Browser too old. Stripe Checkout requires a modern browser. Update Chrome, Safari, Firefox, or Edge to the latest version.
Try again
- Refresh the event page.
- Start registration from scratch (don't use the back button).
- Double-check your card details.
- If it fails a second time, try a different browser or device.
When to contact us
If the charge went through but you didn't get a confirmation, contact us with:
- The event name and date
- The email you used
- The charge amount and card issuer
We can see in Stripe whether the payment succeeded and manually confirm your registration if needed.
Still need help?
For a specific error message (e.g., "card declined," "authentication failed"), search the message in the help center or contact us directly.