New update for iPhone 4S?

Ok so I got the new update and all. And now when I want to get a free app, it says wham at card of like to us to buy it. I'm pretty sure it's free. I barely got the update like right now. Is it free? Or is it a glitch or something, and it showed all the cards I could use. I just pressed cancel.

The best way you update your iPhone via manual update system by iTunes with iOS 7.0.4, may its solve your problem.