why deduct money from visa
i tunes want to update visa details after i did it need to deduct money from visa . i do not know why
iPhone 6s, iOS 9.3.5
When you add/change card details a temporary store holding charge is applied to check that the card details are correct and valid, the card issuer should automatically remove the charge within a few days or so : About payment card authorization holds in the iTunes Store - Apple Support