Hi I credited a customers credit card by mistake, how do I fix this?

Welcome to the Community, @dguggenbiller.

Let me provide some information about the credit made by mistake in QuickBooks Online.

Since the credit to the customer's credit card is incorrect, I suggest you proceed with contacting our QuickBooks Payments Team. One of them will need to take over and check if it's still possible to reverse the process.

Here's how you can reach them:

1. Visit the Contact Support article.
2. Go to QuickBooks Payments and GoPayment.
3. Follow the steps to contact support.

You can also visit your QuickBooks Payments account and see if an option to reverse is available. For the detailed steps, please visit the Void or refund transactions in QuickBooks Payments article.

Additionally, I recommend the following resources about handling customer payments, as well as processing refunds in QuickBooks:

• Void or refund customer payments in QuickBooks Online
• Record a customer refund in QuickBooks Online
• Am I charged a fee on refund or void transactions?

Drop me a comment below if you have any other questions. I'll be more than happy to help. Wishing you a good one.