I cannot complete the purchase

You need to do as the message says and contact iTunes Support

• go to http://www.apple.com/support/itunes/ww
• - click on your country's flag
• - click on the Contact Support at the bottom of the left-hand column
• - click on Contact iTunes Store Support on the right-hand side of the page
• - then try Purchases, Billing & Redemption

Click here and ask the iTunes Store staff for assistance.

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