How to find out if a user has got in-app purchase refunded

A user makes in-app purchase, uses our services and then later on asks Apple to refund. Is there a way we can identify this refund and associate it with a user so that we can block him from using our system further.

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pddltd
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The IAP FAQ offers some relief:


Receipt

How do I use the cancellation_date field?

The Cancellation Date (

cancellation_date
) field is designed for use with auto-renewable subscription, non-consumable and non-renewing subscription products. This field is set when a customer contacts Apple customer support for a refund and the transaction is canceled. The utility of the 
cancellation_date
field is most useful with auto-renewing subscription products. After the refund is issued and the 
cancellation_date
field is added to the iTunes Server records for the user, there is no automatic update process for the application copy of the appStoreReceipt to be automatically updated. In the case of a receipt with an auto-renewing subscription product, validating the appStoreReceipt results in the iTunes Store verifyReceipt server providing the most current information about the auto-renewing subscription product in the latest_receipt_info field of the validated receipt.


At present this support does not exist for validating appStoreReceipts which have non-consumable and non-renewing subscription products. After the refund event, validating the appStoreReceipt in the app will not reflect a refund for non-consumable and non-renewing subscription purchases. The iTunes Server can update the appStoreReceipt to show the 

cancellation_date
, but an update event must occur. The appStoreReceipt is refreshed only in the following cases after the refund has occurred - when there is a successful purchase of an in-app purchase item, when the 
SKReceiptRefreshRequest
call is used and when the 
restoreCompletedTransactions
is used to restore previously purchased products.

Important: 

cancellation_date
is not currently added for consumable products.


...but how do you intend to ban users even if you blacklist them based on refunds?

Posted by
KMT
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Apple will rarely agree to a refund for a consumable IAP.

But if they do, there is no way for you to detect that refund in the receipt.

Posted by
PBK
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ACtually apple agrees often and it's sad that we are not provided with the tools to manage it automatically or at least manually. Is there any news on this?
Posted by
eduardosantos
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...
Posted by
nepoez
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You can config with apple to receive refund related notifications https://developer.apple.com/documentation/appstoreservernotifications/notificationtype

Posted by
lxrea
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