Need help cancelling subscription. I keep getting error message: "Something's not quite right..." Have cleared Chrome caches & used incognito. No change. How to cancel?

I'm glad that you've reached the Community forum, eric50. 

I wouldn't like to see you cancel your subscription. Please know that I appreciate for letting me know in advance that you've tried accessing your account through the incognito window and have cleared the cache already. 

When doing the cancellation, you may consider using the other compatible browsers in QuickBooks Online. Then, let's see if you're still getting the error message. If it's still there, I would recommend contacting our specialist to help you fully cancel your subscription. Let me guide you on how to connect with them:

1. Click the Help icon.
2. Select the Contact us button.
3. Enter a short description of your concern something like "Need help in canceling my subscription". Then, Let's talk.
4. You can select either to message an agent or get a call back to talk to one of our specialists.

You can reach out to them  from 6 AM-6 PM PT Monday-Friday. In addition to this, we have limited support and reduced our support hours due to COVID-19.

Also, here are some articles that we can use from time to time. It's all about knowing the steps on how to cancel the subscription and be informed of what would happen to your data after the cancellation.

If you ever need anything else in QuickBooks Online, please tag me anytime. I'll help you as soon as possible. Take care!