Q: I can't click the download now button

I am having trouble downloading iTunes I can click on the button that say's download iTunes, and then it takes me to the page where you have to type in your e-mail address. I do that, I type in my e-mail, but when I try to click on the download now button it won't let me. is anyone else having the same issue. If so please help me I don't know what else to do.