@W012
QB employees are creating more work for you because it's pretty clear they don't understand your situation.
Your question is a bit confusing. Your screenshot shows that check #1379 paid bill # Refund-ID 30099891, so that should have closed the A/P created by the bill. Are you saying this bill payment is still showing as an open vendor credit (unapplied payment)? Are you importing these transactions from another software platform?
Pull up the bill payment again and click on the Reports tab at the top, then click 'Transaction History'. You should see the bill listed under 'Bills Paid'. Do you see the bill? If so, click on the blue 'Go To' button. That's the bill that was paid. If there's a bill listed for the same amount as the payment, then it's confusing as to why this payment is showing as unapplied.
