Free apps ask me for money?
When I try to download a free app it asks me to put my credit details in, so I do, then it tells me it's been declined (because there is no money in my bank) but it is a free app? Now I'm worried if I do it now whilst my wages are in there that it might take a lot of money as I don't know how much it wants to take, I also don't understand why it even wants to take anything? Can someone help? I have so many updates I need to do on my iPhone and iPad and it won't let me do that either. Thanks guys!
iPhone 5, iOS 6.1.4