“Get More WooCommerce Sales And Traffic”

If you have invoices in your WooCoommerce Referral Program that hasn't been paid, you can still pay them by following the steps below: 

Step 1. From Dashboard, go to Rewards

Step 2. Under Rewards -> Manage Invoices, click on "Search Invoices" on the right pane

Step 3. On the next page, select the Payment Status as "Unpaid" and click Search

All the unpaid invoices will be listed