What to do when it says "contact iTunes support to complete this purchase"?

You will want to contact Apple iTunes Support. (That’s not us.)

Nothing you can do to resolve this either, other than contacting Apple.

Contact numbers for countries and regions are here: Contact Apple Support - Apple Support

The people on these boards are mostly other customers and won't know why you're getting that message. Click here and ask Apple Support for assistance; if you can't reach them or are in a hurry, try putting in a different payment method.

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