I can see the importance of refunding your customer without requesting their credit card details, FranzMaruna. However, our current process requires that information to issue a refund. Let me walk you through the steps.

In QuickBooks Payments, the easiest way to search for a transaction is by date, amount, and last four digits of the customer's credit card number. To void or fully refund a transaction, follow the steps below:

1. Sign in to your QuickBooks Payments account.
2. From the Processing Tools drop-down, choose Reverse a Transaction.
3. Fill out the necessary fields and click Search.
4. Select the transaction(s) you want to refund, then Submit.

For more details, open this article: Void or refund transactions in QuickBooks Payments.

Also, you can follow the steps shared by my colleague JamaicaA on other ways to issue a refund in QuickBooks. For detailed instructions, click this link: Void or refund customer payments in QuickBooks Desktop.

Additionally, I'll be sharing this article that shows you how QBDT manages and deposits the payments you make with QuickBooks Payments: Automatically record QuickBooks Payments bank deposits in QuickBooks Desktop.

If you have questions about processing a refund for your customer or any issues with QuickBooks Desktop, please reach out to me. I’m here to help whenever you need assistance.