I received a gift card for itunes and it was in part redeemed .I had forgotten my password and attempted to use what I thought it was a number of times.iaccordingly uninstalled itunes ,however I wish to reinstal it and use the balance of the card.no point in doing so if I am blocked out .How do I go about abling what has been disabled?

I received a gift card for itunes and it was in part redeemed .I had forgotten my password and attempted to use what I thought it was a number of times.I accordingly uninstalled itunes ,however I wish to reinstal it and use the balance of the card.no point in doing so if iam blocked out .How do i go about re abling what has been disabled?

I have added two characters