Welcome, @corecomm and thank you for coming to the QuickBooks Community for assistance. I have some insight on changing the frequency of your tax payments to pass along.
The process to change the frequency of tax payments requires a tax notice with your current filing frequency showing the filing frequency you should be on.
You can contact support here, and provide that documentation to them to get that updated for future payments. They will also be able to see if it's possible to cancel any pending payments to be changed to a future date.
If you have any other questions, please don't hesitate to reach out. I'll be here.