I have not downloaded the game dancing lines and was charged for it. Please refund our money.
I have not downloaded Dancing Lines App and was charged for it. Please reimburse Our account
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We are fellow users, these are user forums, nobody one here can refund you for anything.
Assuming that this is something that shows on your iTunes account's purchase history (e.g. it's not just a phishing email that you've received) contact iTunes Support if you claim that neither you nor anyone you've given access to the account did it (I assume you've changed the account's password if you are saying it's been hacked) : http://reportaproblem.apple.com or http://www.apple.com/support/itunes/ww