Hi admin147,
the input field for name is not displayed when you are storing first account for the domain. The reason is that most of the users have only one account for every domain, so the default name of the service (Gmail, Amazon etc.) is just fine. And that is why we don't show the name field in the dialog for the first account.
However when you are storing second and other accounts for the same domain, the name field is shown and you can name it as you wish.