Hello there, sforg.

Let's get this sorted out so you'll be able to unreconcile your statement in QuickBooks Online (QBO).

To resolve this, make sure to choose the correct ending date in the reconciliation window.

Here's how:

1. Go to Accounting.
2. Choose Reconcile.
3. Select the account you want to reconcile and click Resume reconciling.
4. In the Ending date section, enter the date you want to reconcile.
5. Click Start reconciling.

Here's an article to learn more about unreconciling transactions in QBO: How to unreconcile a transaction or undo a reconciliation.

Let me know if you have additional questions or clarifications about recording refunds from a vendor. I'm always here to help.