Oh yeh, I had 4 accounts, had about 8 domains distributed over them, I get spammed left and right by this company! The worse part is, once you add a domain, you can't remove it, there is no option; so you always get nagged to change your ns servers back...
It's funny, they never stop, but they always say they will... "you have untim march first to change your name servers back or we will remove the domain from your account" then each email is about 20 days after...