Rewards apply to all paid content.
Stated reward is for iTunes books, TV, movies, iOS in-apps and in-app subscriptions. You will earn a lower reward on purchases of music, playlist or ringtones. Purchases of iTunes Gift Card are not eligible to earn rewards.
You cannot earn rewards for purchasing hardware through the iTunes program.
All In-App Purchases made in a 24-hour window in that same app will be eligible to earn rewards.
Your purchase will be shown in your account around 14 working days from the date of your purchase.
Effective 4 Aug 2014, iTunes will not entertain enquiry on untracked iTunes transactions.