I recently upgraded to a new debit card, and when I put the card number and the security code on iTunes I always get the error message saying "The security code you entered is not valid".I have verified that it is the right one, and the billing address is correct. A friend of mine is also having the same problem, changed to another card a few days after me. Already contacted Apple via email and they said that I had to contact my bank. I contacted my bank and they couldn't help me. Any suggestions?

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