Tesla!D is your unique name used for TeslaPay services.
You are prompted to create the Tesla!D during the registration process. It should start with an exclamation mark (!), followed by the name/surname/username that you choose (at least 5 alphanumeric characters).
To find out your Tesla!D, please log in to your TeslaPay account.
On the top right corner you will see your Name and Surname, just click on them, and you will find your Tesla!D: