Talk:Just Dance 2015/@comment-25583267-20141227200103/@comment-25357684-20141227205845

So, it says that the currency that your gift card is doesn't match the currency used by your Microsoft Account.

In other words, your account uses Romania money while your gift card has Austria money.

From Xbox Support:

Can I redeem currency from a different region in my account?

No. You can only redeem currency from the region associated with your account.