Two-step verification

Hello Coolkat2,

Welcome to the QuickBooks Community. It's important you're able to log into your account and I'll be happy to steer you in the right direction. 

Based on what you've described, I recommend accessing the back-end of your account so you can log in and verify/update your account info.  You can also turn off the  two-step verification on your account if you'd like. Here are the steps:

1. Sign in to your Intuit account using this URL http://accounts.intuit.com.
2. From the left menu, select Sign In & Security.
3. In the Two-step verification section, select Turn off.
4. Enter the code, then select Continue.
 

In case this issue persists, I encourage you to contact our support team so they can assist you further with this. Here are our contact details: 

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

I'll be one message away in case you need further assistance.