меня каждый месяц снимает 5$,в чем дело?

You've looked at the purchase histories and Subscriptions section of all iTunes accounts you have linked to the card, and you haven't got extra iCloud storage ? If you can't find it, contact the card issuer.

When trying to remove the card from your iTunes account you are getting a message about an active iTunes subscription ? And it doesn't show, not in the Subscriptions section and you haven't upgraded your iCloud storage on that account ? Have you tried asking iTunes Support about it : http://www.apple.com/support/itunes/ww (click on your country's flag, the country where you live, and which is therefore the country on the account ; click on Contact Support towards the top right ; click on Get Help under 'Talk To Us’) ?

Try this form : https://www.apple.com/emea/support/itunes/contact.html

Follow the instructions I gave to contact iTunes Support, you are not doing that by coming here, these are user forums.

And you haven't upgraded your iCloud storage ?