Our phone support would love to give you a callback, aihongwang.
To do so, I recommend requesting a callback in your QuickBooks Online account. This way, you'll be able to receive the assistance you're looking for. Here's how:
To ensure you'll be assisted on time, please see our support hours.
You can also share your concerns or questions here in the QuickBooks Community. We'll do our best to ensure we'll be able to provide the solutions or answers to ensure you can work on your books seamlessly.
Please don't hesitate to keep me posted in this thread. I'll keep an eye on your response and ensure everything is taken care of.