I can't remember the last time I did that to tell you the answer... though I'm pretty sure it appeared within 24hrs =/ are you just asking? or are you trying to add a chapter to the series you added? maybe ask tony....
It won't get approved until you add a release: http://www.novelupdates.com/add-release/ Novels don't need to get approved for you to add a release. Helpful link: http://forum.novelupdates.com/threads/how-does-novel-updates-work.21477/