Who do I contact if I get an unknown bill from Apple?
On 13th April iTunes and App Store charged me $97.99 AUD. There is http://apple.com/bill on my PayPal receipt. I didn't buy or subscribe to anything from apple that should cost $97.99. Even I didn't get any tax invoice from apple for this purchase. Where do I need to contact? I am not getting any track of my purchase or possible cause of charge.
[Re-Titled by Moderator]