Unauthorized Payment

Hi,

I have 1unauthorised purchases in my bank account from the "Apple iTunes Store Sydney" for the ##/## in the total amount of 110 rupees (INR).4 These amounts do not appear in iTunes >> Account >> Purchase History. I have one computer (running windows 7) authorised to make purchases and currently have active one device (iPhone 4s). I have since cancelled my credit card as advised by my bank. Please investigate this issue.