DavidR
3
I’m certain we have been here before.
From your my.avast.com account, use your browser not the avast UI to get there. Login, click on your email at the top right of the window - now select Manage Emails, Add a new email address. You will have to validate that address, once done you should be able to change that email to your default email address.
With all of the messing about you have done, creating another account, don’t be surprised if you don’t get this email address is in use, if you have used it before for any account.