Hi marjones48!
I can see that you want to disable the verification code. Let me explain more about our security settings.
Intuit always makes sure to protect your data. One way to guard them is through the verification codes. You may visit our security site: https://security.intuit.com/.
Once the two-step verification is turned on, the system will ask for a code every time you log in. Although you turned it off already, we still have multi-factor authentication or MFA which allows you to receive the code by email, text, or call.
The MFA is the default security setting in QuickBooks Online and we're unable to disable it. Unlike the two-step verification, it won't prompt you to enter a code every time you log in as long as you're using the same browser or device. The MFA may trigger if you'll be using an incognito window or after clearing the browser's cache and cookies.
Here are some of the articles you'll want to check. These will explain further how to verify your account when logging in:
Need more help? Comment again here and we'll respond as soon as we can.
