Playerauctions habits?

Slightly unrelated playerauctions question for you guys:

I bought an account a month or two ago from some seller that deals in large volumes of accounts (cheap ones) and stuff. They were very helpful in helping me to transfer the character to my own account and such, but ever since then they keep sending me e-mails asking me what server I'm playing on now. Is there some reason that I don't see here for why they would want this? The only thing I can think of is that they want to watch the toon and steal it back when I've progressed it a good bit.

(If this post is too out of place delete it, sorry).
 
I would just ignore it. Unless you personally know them, they have no reason to want or need this information. After you bought they account, they don't have any reason to need to know anything at all about the account or characters.