Hey guys, Here is what google says for the "pending review" definition: Has anyone seen their ads live when searching for the keywords you specified? Because according to Google ads should still show up on the search pages.
They do show but at a much reduced rate, I'd say about 10% of the time only. In other words, only one out of ten times people on Google search your keywords.
This happens basically with Banner Ad but if it takes more than 72 hours contact Adwords Suppport Team.