Casio Ravine 2 , 5 months old. Since software update 9-16, Doesn't let me answer calls, doesn't relay all my voicemail, goes to stand-by if I touch a key (doesn't turn off, but I have to turn it off and back on to get it to work again). Have not been able to get to 'Live Chat' for 2 days (always busy helping other customers). How do I fix this?