Unauthorized charges of £9.99 and £54.99 after purchasing a book for £1.99 on Apple Account

I bought a book for £1.99 and then two other payments have been taken from my bank account for £9.99 and £54.99 for which I have recieved no invoice and have no records in my Apple Account - any ideas on how to reslove this?

[Re-Titled by Moderator]

Original Title: No purchase made and no invoice provided - but money taken from account- any ideas on how to reslove this?