I've been trying to cancel my subscritbiton and get a refund but it gives me error message !
Hello there, info1364.
When a user encounters unexpected errors, we can perform basic browser troubleshooting to fix the issue. It could be that the stored cache or an outdated browser is the reason why invoices show as overdue status.
We can start by opening a private window and use it to access QBO:
Google Chrome: Ctrl + Shift + N
Microsoft Edge: Ctrl + Shift + P
Firefox: Ctrl + Shift + P
Safari: Command + Shift + N
Once done, you can then try to cancel your account. If it's working fine, we'll have to go back to your regular browser and clear the cache to eliminate the junk files. If you still encounter the same issue, you can use other supported browsers.
Also, I'd recommend contacting our support team by clicking the Help icon in your QBO account. They'll use their tools to check your account and provide you the accurate details about if there's something else they can do with the refund.
Here are some articles that will guide you through updating your billing and subscription in QBO: