My app has been approved, and its now on the App Store it runs correctly and in the simulator the adBanners work as they are supposed to, but the problem is that in my published app there are no ads so i first tough that it must be because of the number of downloads but as i kept looking on the internet i found that it could be because of the contract in iTunes connect, but I've filled all the contracts.
My question is : "Do I need a minimum of downloads for the ads to appear or my implementation of the iAd workbench in my app is incorrect?"