Visa Card and iTunes

I got a Visa Gift Card(Debit) for my bday, and I really want a game on iTunes. But, whenever I try to enter in the information for the card I kept getting an error saying “Please enter valid security code” and it’s rather infuriating…anybody have any solutions? I looked on Google but found nothing :/
Answer #1
You could buy an itunes gift card using the Visa gift card
Also, is there a website listed on the back of the card where you have to go and register? That might be your problem also.
Answer #2
Yeah it’s registered already and I don’t have the ability to purchase one at the moment unless you can purchase them online, but thanks for the quick reply
Answer #3
you have to make sure you do put in the right security code on the visa/master card gift card the number on the back sometimes it’s not clear enough to read it