Is cancellation_reason property in ServerNotification helpful to identify refund abuse?

We are planning to ban users who repeat suspected refund abuse. For judging the refund is abuse or not, we think the cancellation_reason property in ServerNotification helpful.

https://developer.apple.com/documentation/appstoreservernotifications/unified_receipt/latest_receipt_info

cancellation_reason:

The reason for a refunded or revoked transaction. A value of “1” indicates that the customer canceled their transaction due to an actual or perceived issue within your app. A value of “0” indicates that the transaction was canceled for another reason; for example, if the customer made the purchase accidentally. Possible values: 1, 0

We're thinking to judge the user who refunds many times with cancellation_reason = 0 as suspicious of abuse, and ban.

Question:

  1. Is it OK to use cancellation_reason for such judgement?
  2. How is the property determined? Does it only rely on User's report? Or does the Apple Support make a judgement?
  3. Can you provide a general exsample when cancellation_reason is 0? (We want reply from person inside Apple).

About Identify Refund Abuse: https://developer.apple.com/documentation/storekit/original_api_for_in-app_purchase/handling_refund_notifications#3591293

Is cancellation_reason property in ServerNotification helpful to identify refund abuse?
 
 
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