Hello, flthymcnsty.
In QuickBooks, it's always our top priority to secure our customer data. This is the reason why we need to verify your account to prevent any fraud or thief using your credentials. Since you tried to change your mobile number yet, the verification code still sends to your old number. I suggest reaching out to our customer support team. This way, our agent will pull up your account and help you with setting up your new number successfully.
Here’s how to get in touch to our support team:
- Sign in to your QuickBooks Online company. Then click Help (?).
- Click Talk to a human.
- Choose Talk to a human.
- Enter your concern.
- Tap Contact us.
To know more about verification in QuickBooks Online, visit this article: Verify your account with multi-factor authentication.
Also, I've attached these articles about updating business information in QBO for your reference.
If you need more help with this, let me know by commenting below. I'm always here to answer it. Have a nice day.
