Can I update My account

Who is "him"?

I'm here to guide you in updating your account in QuickBooks Online, @Belmer 2.

If your QuickBooks account has been deleted and you want to invite a new user, it isn't possible because you'll only have read access to your account. To invite someone new, you'll need to re-subscribe or reactivate your account first.

After reactivating the account, you can now proceed in adding a new user. Please note that your subscription level determines how many users you can add. Certain roles don't count toward your user limit, like Reports or Time tracking only.

Here's how to add a new user:

1. Head to the Gear icon, then select Manage Users.
2. Choose Add user. Enter the user's name and email address.
3. Choose your preferred role in the Roles dropdown.
4. Review the features this role gives access to. You can expand each section.
5. Once done, click Send invitation button.

I'll add screenshot for visual reference:

For additional detail on each user role, including their respective access levels, refer to this article: User roles and access rights. 

If you mean something else you can always come back to the community and provide further details about it, I'm always here to help.