I know a way how to refund credit memos without issuing an invoice in QuickBooks Online, Katb. Let's get started.
We can create a check affecting the Accounts Receivable (AR), then go to the receive payment window and link the credit memo from there. This way, we can refund the credit to the customer.
Here's how:
- Click the + New in the left panel and choose Check.
Select the customer's name.
- From the Category column, choose Accounts Receivable.
- Enter the Amount and other necessary details.
- Hit Save and close.

Once saved, we can link the check and credit memo through the receive payment window. See the sample screenshot below.

To know more about this process, we can refer to this article: Record a customer refund in QuickBooks Online. In the same link, we can find other ways how to handle customer refunds based on scenarios.
Feel free to get back to me if you need more help with credit memos and refunds, Katb. I'll be around to help the best way I can.