unauthorized purchase not related to my history

I have US account and i have never used my UAE credit card for it as i usually use gift cards.

My credit card was used 3 times today with 100$ each, a total of 300usd from itune.com/bill in IRL.

this credit card was never on file how come i was charged and its not history related to any recent purchase nor email confirmation was sent . i was notified by the bank only for the repeated purchase.

i would like to these amount reversed back to my account else please provide further justification .