What do you mean by ticket kiosk? The counter where they sell tickets? If so, of course, that's the only place. Or you mean, a hole in the wall in town?

Agree with 889, while some counters are for refund, exchange, military, etc, I just go to the shortest line even if I am not supposed to. If you are Chinese they probably send you away, but once they see my white face they are probably thinking that the stupid foreigner doesn't know what he is doing and I get my tickets. As a foreigner, I often find it useful to play dumb and forget any language skills that I have. They will just give up and you get your way. In these types of circumstances, my better half who is Chinese stays away otherwise it wouldn't work.