manj90, don't take it bad, but most people in this forum post their experiences and move on. The wealth of information is embedded in their posts. So, besides waiting for someone to answer it might be good to do a good search for posts that have supervisor and then look for all the posts for those people to get an idea. I don't have that experience as far as I know (I never called to see if my case needed supervisor approval or not). I think if it adds some delay it is about two weeks or so. No case is like another case.