Do you get charged for downloading a free app on an iphone?

Like it says I've made a purchase on my apple i.d, but the app was free… Will i get charged?

No, if it says free then there's no charge.

Free= $0.
But you could get charged if you don't have unlimited internet (not connected via Wi-Fi) and pass your data cap.

If it's free of course you won't get charged.

No you won't get charged, most of the times you will still get a receipt though.

No, if it says free then there's no charge. Most of the times you will still get a receipt though.

I just downloaded a free app on my iPhone; they asked me to login and then to verify my credit card details. Not long later, I received a message from my CC provider that I have been charged USD1! I rechecked and noted the fact that this is a free app for download! What can I do now? Where and who should I raise this to?