Welcome to the QuickBooks Community. I trust that all is well on your end. Rest assured, I'll be glad to share more info and help make sure you're on the right path with achieving your goals.
It's important you're able to cancel the payroll direct debit set up with ease. That being said, I see you benefiting more by contacting our support team outside of the Community. A specialist will be able to share your screen and help you get the resolution you need in a timely manner. Here are our contact details:
Schedule a Callback or start a Chat: click (?)Help in the upper right in QuickBooks Online > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.