In the email there is a green "watch for more" icon. Select it and scroll down to the bottom. There is a form to complete with your details.On the Discovery Bank FAQ:
"You aren’t yet a Discovery Bank client yet, but as a Discovery Card client you’ll be first in line to get your new credit card when we’re ready. Be one of the first clients to join - add your name to the list and we’ll contact you as soon as our staff beta test is complete, early in 2019. "
Any idea how to "add your name to the list"? Or is that not necessary for Discovery Card holders?