I installed the Amazon appstore to get the free app of the day. I wanted the one a few days ago that was for podcasts. It doesn't work and tells me I need a valid address for 1 click ordering. My account has a valid address and payment option. Amazon has used it to be paid and shipped to me a few times. I've contacted support and they tell me everything is fine. My Samsung Charge still refuses to accept it and work with it. Anyone have any help to offer? Thanks.