Does anyone know within your account settings, payment type, card details, what "security code" means? I thought it was asking for the 3 digits code on the back of the card, wrong. So i thought it had to be my pin, wrong again. :(the "security code"
I've been reading and I agree, I think the problem is I just changed my address with the bank and iTunes. I figure something is just not updated yet. I was confused as under 'payment information' is kept telling me the security code was invalid.