Entering a bill that has charges and credits isn't possible, jroneill.

QuickBooks doesn't allow you to enter a negative amount on a Bill. Therefore, if you receive a correction for service, you need to record it as a separate transaction. Once done, you can apply it to the Bill. It's a simple way to ensure your records are accurate and up-to-date in QuickBooks.

To enter a separate credit:

1. From the Vendor menu, select Enter Bills.
2. In the Enter Bills window, choose the radio button option for Credit at the top.
3. Then select the name of the vendor who issued the credit.
4. Enter the date you received the credit.
5. Then enter the amount into the Credit Amount field.
6. Then select the affected accounts or items on the Expenses or Items tabs at the bottom of the window.
7. Click Save & Close.

To apply the credit to a bill:

1. From the Vendor menu, select Pay bills.
2. Choose the bill that you wish to be paid.
3. Click the Set Credits button at the bottom to apply credits.
4. Once done, click on Pay Selected Bills.

I'll add this article to see the complete list of workflows and vendor-related transactions for another task: Accounts Payable workflows in QuickBooks Desktop.

If you need additional help in handling your vendor credit or any other tasks, feel free to inform me. I'm here, ready to assist you promptly.