I can help you apply the credit amount to your open bills, @beiland.

You can include the credit amount when paying your bills. This way, you don't have to create an actual vendor credit and debit or decrease your Accounts Payable.

Here's how:

1. Click the +New button.
2. Select Pay bills under the Vendors section.
3. Find and choose the bill, and then include the credit amount in the Payment column. Say the bill amount is $500, then you'll have to enter $550 as the payment value (credit already included).
4. Click Save and close when you're ready.
   
5. You can use the remaining amount when paying your future bills again.

If you want to track the bills and their respective payments, you can run the Bills and Applied Payments report. Just navigate through the Reports menu, and then refer to the What you Owe section.

I'm still willing to give a guide or two for more tips about handling bills in QuickBooks. You can lean on me always.