I can see the urgency of getting this resolved. Since your concern is sensitive and requires confidential information about your Intuit account, I recommend contacting our QuickBooks Customer Care Team. They can verify why you're being charged twice and take further action.
Here's how to get our contact information:
In your QuickBooks Online, click the Help menu in the upper-right corner.
On the Search tab, click an article and select Contact us at the bottom. Then, enter the details of your concern.
Choose how you would like to connect with them: either via Callback or Chat.