Hi 123145855456314H2,
You'll want to turn off the Automatically apply credits option in QuickBooks Online (QBO). Let me guide you on how.
- Click the Gear icon.
- Select Account and Settings.
- Click Advanced on the left of the screen.
- Click the Pencil icon in Automation.
- Remove the check-mark in the box next to Automatically apply credits.
- Click Save and select Done.
You can also remove and add a bill to a specific vendor. Please check this article for reference: Remove, Add, Delete Bills in Online Bill Pay.
If you have a question. you can let me know so I can get back to you.