I have noticed that miles seem to post mid-month and at the end of the month. I've never been successful at the kiosk, but I did get credit for trying, when I went to the one at SEA where you can check your bags. I told them I was getting an error message when I tried to check in at the kiosk, and they checked me in. I got the bonus even though I couldn't use the kiosk. I thought it was a nice touch (I was upgrading, so the kiosk didn't know what to do with me, even though I had been told over the phone I could still use it.).
Karen R