I'm here to make sure you won't get charged again, @inmanyoung.

Did you receive an email confirmation after canceling your account? You can follow the steps above provided by my colleague, IamjuViel, on how to cancel your account within your QuickBooks account.

Also, I'd like to redirect you to our Email Support Team. This way, they can take a close look at your account and review your billing history. 

1. Sign in to your QBO account.
2. Click the (?) Help icon in the upper right-hand corner of the Dashboard.
3. From there, select the Contact Us button and enter your concern in the description box.
4. Enter Account Billing and Refund as your contact reason.
5. Once done, select the Email us option.

You can always reach out to us again if you need additional assistance. We're always here to help.