We are fellow users here on these forums, you're not talking to iTunes Support - I've asked the hosts to remove your phone number from your post
If you log into your account on your computer's iTunes via the Store > View Account menu option, you should then see a Purchase History section with a 'see all' link to the right of it. Click on that and you should then see a list of your purchases (the mose recent is above the list). I'm not sure if it shows auto-renewing subscriptions (I don't have any).
If you can't find the charges or don't recognise them, and you haven't added or changed your credit card details (when you do then a small temporary store holding charge may be applied to check that the details are correct and valid, which should disappear within a few days), then you can contact iTunes Support via this page : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption