You guys charged me for something I didn’t even buy

No we didn't, we are fellow users, these are user forums.

If there is a purchase on your iTunes account that you claim you didn't do (I assume you've changed the account's password if you are saying it's been hacked) contact iTunes Support : http://www.apple.com/support/itunes/ww (click on your country's flag, the country where you live, and which is therefore the country on the account ; click on Contact Support towards the top right ; click on Get Help under 'Talk To Us’)