yes. check the recruiting page. sometimes the $10 charge for the call will be refunded, and in those cases its easy to see that the player refused contact (and is not pullable). Other times the kid will ignore the call but you still get charged. These are tougher to spot, but as you say, if you don't get a reply he is not interested. I have heard rumors (like stories of yeti or Loch Ness monster) that it may still be possible to recruit these players, but I've never been able to do anything by sending more effort other than to get the kid to finally tell me to eff off. YMMV.