I can imagine the hurdle you've been through trying to resolve this problem, @kirkjmiller. Let me make it up to you by ensuring you get the best help available so this gets sorted out immediately.

To address this issue right away, I recommend contacting our Technical Support Team. I understand you've already reached out to them. However, it would be best to contact them again. They have the proper tools to look into your account and perform a screen-sharing session to investigate why QuickBooks automatically creates vendor profiles after syncing with your bank. Here’s how to get in touch with them:

1. Log in to your QuickBooks Online account.
2. Click the ? Help button at the top right corner.
3. Go to the Search tab, then select Contact Us.
4. Enter a brief discussion about your concern, then click Continue.
5. Choose a way to connect with us.
   

Please check out our support hours to ensure that we can address your concerns on time.

Additionally, here are some articles that you can read to help speed up the review process of your online bank transactions:

• Categorize and match online bank transactions in QuickBooks Online
• Set up bank rules to categorize online banking transactions in QuickBooks Online

Feel free to reply to this thread if you have other banking concerns in QBO. I’ll be around, ready to back you up. Stay safe!