Why would you need to do this? I have had this same account since about 2007. And they send the confirmation code to my email address that is part of my account.
And my username is Not an email address, as you see here.
How many accounts did you create and use over the years, and which is the accountant trying to have you set up new? That isn't the point. It is one account for all things Intuit.
We really are not the people to help you more. Sorry.
