Actually , We send an email to registored email ID with account details along with nameserver , But some time user not got email for many reson or late recived.
Don't worry , if you not get on inbox then you can check spam . also you can find from client area.
Step 1). login to you client area
Step 2). On the top you click on account menu and go to Emails History. As like screenshot.
Step 3). Go to search bar and type new . it will come result with email list New Account Information . click on View message .
Final Step . Scrool dwon the page and find nameserver as like below image.