B2B Online - Account Registration Journey

When signing up via the B2B login, I noticed after completing the sign-up, the screen gives the option to "Return to login," which takes users back to the B2B sign-in page. Since users don’t automatically receive login credentials right away, would it make more sense to instead have the button say “Return to website" to get them back to the public website? 

Also we would like the opportunity to customise our welcome emails.