I appreciate you getting back to us, @LaurensPP.

The steps provided by my colleague above is for QuickBooks Desktop (QBDT). And I'd be happy to walk you through the steps on how to get this done in QuickBooks Online (QBO).

To create a credit memo, here's how:

1. Click the Plus (+) icon.
2. Select Credit Memo.
3. Choose the customer in the Customer drop-down.
4. Fill out the necessary information.
5. Click Save and close.

Once done, please follow the steps below to create a check with the total amount of the refund:

1. Click the Plus (+) icon.
2. Select Check.
3. Choose the payee, then select the appropriate bank account from the drop-down.
4. In the Category drop-down, select Accounts Receivable.
5. Enter the credit memo numbers in the Description field.
6. In the Amount field, enter the amount of the refund.
7. Select the customer you want to refund from the Customer/Project drop-down.
8. Click Save and close.

Then, here's how to link the credit memo to the check:

1. From the left panel, click Sales.
2. Select Customers.
3. Choose the appropriate customer from the list.
4. Then click Receive payment from the Action column.
5. In the Outstanding Transactions section, select the Check.
6. Choose the Credit Memos from the Credit section.
7. Click Save and close.

As always, you can visit our QuickBooks Community help website in case you need tips and related articles in the future.

Feel free to leave a comment below if you have any other questions with QuickBooks. We're always here to help.