You can't match a bank transaction with a credit note, allwildseafood. Allow me to share the details with you below.
In QuickBooks Online, you cannot match bank transactions with credit notes, as credit notes are considered non-posting items. Only posting transactions, such as invoices, sales receipts, expenses, checks, refund receipts, and bills, are eligible for matching. Instead of matching bank transactions with a credit note, you can create a refund for your customer.
Here's how:
Click +New, then Expense.
Select your customer under the Payee field.
Under the Category field, choose Accounts Receivable.
Enter the required information, then hit Save.
Next, go to +New and click Receive Payment.
Add your customer and select the created Expense transaction.
The balance should be zero (0) as they will cancel each other out.
Select Save and close.
If you have Online Banking, go to Transactions and match the record found on the Banktransactions page.