How do i match a customer refund to the customer credit note?

Hello Fr4, 

Welcome to the Community page, 

If you follow the steps below

Select + New and select Expense.

In the Payee field, select or enter the desired customer.

In the Payment account field, select the bank the money is being refunded from.

In the Category field, select the Debtors account (Accounts receivable).

In the Amount field, enter the amount of the refund.

In the VAT field, select the appropriate VAT (not inclusive/exclusive of tax).

Select Save.

Next, go to + New and select Receive payment.

Add the Customer and choose the Payment method and Deposit to.

Balance should be 0 as they will cancel each other out.

Select Save and close.

If you have Online Banking, go to the Banking page and match the record found.

If it's the refund on the  +new button  a credit note not required