I appreciate you for sharing detailed information about your concern, AJBookkeeping. 

There are times your browser is not well configured and causes problems. This is why you're unable to pay bills using chrome. You can use Internet Explorer, Safari, or Mozilla Firefox browser.

If the issue persists, I'd suggest contacting our QuickBooks Online Care Team. Let me guide you how.

1. Go to the Help menu at the upper right.

2. Select Contact Us. 

3. Enter your concern. 

4. Click Let's talk. 

5. Select either Get a callback or Start messaging. 

6. Type in your contact info. 

7. Choose either Confirm my call or Send a message. 

 This article will help you check for the new updates for Online Bill Pay.

Don't hesitate to comment if you have other questions.  Have a nice weekend and stay safe.