Some how the Facetime app got erased from my iphone5. How can I reload it on my iphone? I have gone to itunes and the ap store but I can not find it. I have asked iTunes and a very nice tech person ( I would say her name but I would not want to embarass her.) Could not figure out how to get it back on the iphone. I can receive facetime sessions, but I can not initiate one. Any suggestions?