The error prompts you to retry the purchase, but if it persists, it could be due to someone else buying the same seat simultaneously or a glitch in the payment system.
Quick Fixes
1. Use a Different Payment Method
If you suspect the issue is with your payment method, try a different one.
2. Re-Login into Ticketmaster
In case of a session-related glitch, re-logging in can refresh the expired credential data:
3. Clear App or Browser Cache
To clear the app cache:
The steps to clear the browser cache vary from browser to browser. Below are the steps for Google Chrome:
4. Reinstall the Ticketmaster App
When other troubleshooting steps don’t resolve the issue, try reinstalling the app.
If you continue to encounter the U521 error on Ticketmaster, please reach out to Ticketmaster support for further assistance and potential solutions.
