Hi panjianrong1225-,
Thanks for reaching out here. Welcome! It's important that you're subscribed to QuickBooks Online Canada and I'd be happy to help!
Based on the information you've provided, it seems you've signed up for QuickBooks Online from the U.S. website. I suggest cancelling the current account to prevent future billing and then follow this link to get started with QuickBooks Online Canada.
Please don't hesitate to contact us if you'd like additional assistance. Your success is our number one priority and we'd love to help!
Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Feel free to reach back out if any other questions come to mind. We're here for you!