I'm here to help ensure this is taken care of for you.
As much as I'd love to check this, I'm unable to pull up your account here in the Community space for security purposes.
That said, I highly suggest contacting our Support team. They have tools that can check your account in a secure environment and verify why you're being charged for your QuickBooks Online (QBO) free trial version. They can also process a refund if necessary.
Here's how to reach them:
In QBO, click the Help menu in the upper-right corner and select Contact us.
Enter the details of your concern and click Let's talk.
Select how you want to reach them (phone or chat).