For assistance contact iTunes support at www.apple.com/support/itunes/ww/. I have 5 bucks in my account I was trying to use 1 of it on a purchase in a game and it said that I used it from a apple giftcard that the money is already in my account
iPad, iPadOS 14
You may see various forms of a "Your purchase could not be completed" message. Some may show old URLs which will redirect to the current one which just leads you to a page to select your country. After that, to me it is not clear which path you should then follow but try this:
1. Click on this link --> https://support.apple.com/choose-country-region/media-services
2. Select your country
3. Select: Billing & Subscriptions
4. Select: Subscriptions & Purchases
5. Select: Update payment method
6. Select a chat session or a phone call.
Purchase could not be completed
