Sign in with the account used to make the purchase on your Kindle and make sure to open the order from the history of your purchases.
• On a computer with iTunes installed, click on ‘account email’ in iTunes Store to access your account; you will be prompted for your Apple ID and password. Click ‘Purchase History’ to display your purchase history and select the purchase that you did not receive.
Google Play (Android users, purchasing from a phone or Tablet)
• Visit http://wallet.google.com and log in with the same account that you made the purchase with. All purchases should be listed under Transactions and select the one that you did not receive.
• Visit http://payments.google.com and log in with the same account that you made the purchase with. On the left, click ‘Subscriptions and services’ and then’ View purchase’. Select an order to see your receipt.
Microsoft (PC users with Windows 10, purchased through the Microsoft app)
• To see your order history online, sign in to http://account.microsoft.com/orders with your Microsoft account and select the purchase that you did not receive.