payment can not completed
When I try to purchase in apps, "Your Purchase Could Not Be Completed" message appears. Please help！
iPhone 6, iOS 9.0.2
You may need to contact the developer of the app (find a link on the app's iTunes Preview page)
If this is all apps with in-app purchasing, what has changed on your iPhone since your last joy with in-app purchases?
Have you tried at later time? (things sometimes do happen on the server side of the transaction)