I acknowledge the urgency in finding a solution for the issue you're encountering with the application of vendor credits in QuickBooks Online, @LizzysLedgers1.

Typically, vendor credits are applied manually by entering the desired amount in the Credit Applied box. As your QBO account applies for credits automatically, I suggest undertaking troubleshooting steps to fix this problem.

There are instances when the browser is full of commonly used page resources, which results in errors or odd behavior. Let's use a different or private browser to view your account. You can use either of these shortcut keys to access one:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

Then, process the vendor credit. Once it doesn't show an automatic application of credits, go back to your regular browser and clear its cache. This is done to speed up the process the next time you do a transaction in QuickBooks. Also, an alternative way is to use other compatible browsers.

If the issue persists, I suggest contacting our support team by going to the Help menu. They are more equipped to check your account and help further investigate your concern. For detailed steps, you can utilize this article: How and when can I contact Support?

Additionally, I've compiled some articles you can utilize to help manage your bills and bill payments in QBO: 

• Email receipts and bills
• Enter and manage bills and bill payments.

We appreciate your patience and understanding as we work towards resolving this matter. I would be glad to assist you again. Have a pleasant day!