WE HAVE AN ANSWER!!
Thanks to Trish with QBO customer service who stuck with me on the phone until it actually worked!!
Go to your browser settings (ie Chrome settings)
--> Advanced
--> Site Settings
--> Cookies and site data
--> Allow
Add the intuit site address (I added both intuit.com and qbo.intuit.com)
Then go to a new browser window (I used an incognito window), open QBO, and enter info in Resubscribe.
Voila!!!
(fyi--I also had disabled my firewall and virus setting previously but this alone didn't seem to help. It was all still off when they had me allow the intuit address in Chrome settings so not sure if that helped to make it work.)
